“ FI “Electronic
Fuel Injection System

Instruction Manual

fi system Manual ver.4.6.0
Copyright (C) fc design co.,ltd. / http://www.fc-design.com/

“Introduction”
Thank you very much for purchasing the “Fi” system".
“FI” is a fuel injection system for small displacement motorcycle, and this system is not a
simplified but a full functional system, as well as it of large displacement Motorcycle.
ECU(Electronic Control Unit) can detect various states of engine by various sensors and control
the optimal volume of fuel. Furthermore, if you use this system, it is possible to set up almost all
the parameters about Injection with the personal computer linked to ECU. Almost all parameters
can be set up by the full range. Of course, you can use a setup which FC design prepares and canalso do a setup from zero.

Please read notes of the following page before beginning to use this system.
If you have any questions about this system or instruction manual, please contuct us.

FC Design
2-1-48-101, Honmachi, Fuchucho, Akigun,
Hiroshima, Japan post code 735-0006
Tel +81-82-287-0211
Fax +81-82-287-0212
http://www.fc-design.com
E-mail:info@fc-design.com

fi system Manual ver.4.6.0
Copyright (C) fc design co.,ltd. / http://www.fc-design.com/

“Attention”(1)

This product is only for racing use. Therefore, we recommend strongly that you use thissystem in safe places which can respond to the emergency engine stole by the mistaken
arrangement etc., such as a circuit.

(2)

Please install controller in the place which avoided raindrops, splash, etc.

(3)

Do not install a controller in places which become high temperature extremely, such asnear an exhaust pipe.

(4)

When you arrange setting or check this system with engine started, we recommend you to
go in a well ventilated place,strongly.

(5)

Since high pressure has started the fuel line, please check pipe and hose to keep a
performance and safety. Moreover, please be sure to check before a running.

(6)

In order to avoid the accident, please decompress the pressure in fuel line before
decompose a fuel pipe system.

(7)

Do not use this product other than the original purpose.

(8)

You shall not about this system(Hardwear,Softwear,Documents,etc.):(a)Copy, in whole or in part.
(b)Modify(c)Reverse engineering of the composition parts of this product containing software.
(Reverse compile or reverse assemble the PC softwear and ECU firmwear)(d) Transfer software, a document, and CD-ROM independently.

(9)

When you use this system combining the products of the other company ,we do not takeresponsibility for other company’s products .

(10)

If you have troubles and accidents by using this product without observing notes above,wewill not take no compensation and responsibility.

(11)

We do not guarantee the following matters. Please acknowledge it.
(i) Problem of " setting software " by installing other software.
(ii) Problem of other software by installing " setting software ".

fi system Manual ver.4.6.0
Copyright (C) fc design co.,ltd. / http://www.fc-design.com/

“When you connect ECU to the system harness...”(1)

After removing terminal of vehicle wiring which are connected to the battery, connect
system harness to wiring of vehicles, attach or remove ECU to system harness.

(2)

When ECU is connected for the first time, please look at the lamp display of ECU well.
Please turn off a switch promptly, and check the polarity of a power supply, andconnection, when a power supply lamp does not light up.

(3)

When you disconnect a coupler from system harness, be careful not to cut the wire of it.

fi system Manual ver.4.6.0
Copyright (C) fc design co.,ltd. / http://www.fc-design.com/

“ Content “(1)Product outline(a) ECU exterior.
(b) Fuel Injection Control.
(c) Other Controls.
(d) Other Parts of System.
(e) Dial Controller.
(f) Lamp Display Function.

p1-1
p1-3
p1-7
p1-8
p1-10
p1-12

(S)

Gertting Started

S-01

(A)

Hardwear installation

A-01
A-02
A-09
A-11

(a) Layout(b) Guidance of wire harness connection.
(c) Installation of fuel piping.
(d) Execute the air pulling out of the fuel piping.
(e) When air enters while operating andpressure doesn't go up.
(2)

Tutorial of PC software [ SWB ](a) How to Install.
(b) Outline of “SWB”.
(c) Start and Exit.
(d) How to Set-up the Settings. -- “Map”(e) Read Settings from ECU.
(f) Read Settings from the File.
(f') To change the maximum value of R.P.M.
display.
(g) Save Settings to the File.
(h) Edit “Basic Injection Time” Settings.
(A) “Changing a value for every point”(B) “Multiplying “Gain”(i) Change Enable/Disable of Each Compensation(j) Edit “Pump Control” Setting(k) Edit ”Revolution Speed Limitter ”& " Indicator "Setting(l) Edit “Compensation Table” Settings(m) Transmit Settings to ECU(n) Data Monitoring Window(n') Show A/F data on Data Monitoring Window

A-13

p2-1
p2-2
p2-5
p2-6
p2-7
p2-9
p2-10

p2-11
p2-12
p2-14
p2-18
p2-19
p2-21
p2-22
p2-26
p2-27

fi system Manual ver.4.6.0
Copyright (C) fc design co.,ltd. / http://www.fc-design.com/

(3)

(B)

Configure and sensor ajustment.
(a) Setting of close values
and full open value of throttle sensor.
(b) Setting of the Idle throttle threshold.
(c) Adjustment by capacity of injector
and displacement of engine.

p3-1

Export & Import function （About the copy of the map
between two ECU）

p 3-5

p3-3
p3-4

Appendix
Specifications of ECU

p B-1

Wiring diagram(alpha-N,Throttle-Speed type)
Wiring Diagram ( D-Jetro ~ Speed Density / alpha-N +Boost Sensor )Connector Diagram

Windows(R) is the trade mark of Microsoft corporation.
Windows(R) is the trade mark of Microsoft corporation.
fi system Manual ver.4.6.0
Copyright (C) fc design co.,ltd. / http://www.fc-design.com/

(1) “ Product Outline”(a) ECU exterior

Photo. “Fi” system ECU (Elrctronic Control Unit)

Connector forcommunication
cable

Coupler:ECU10P :1
0pins

ECU
Coupler:ECU8P:8pinsECU8P,ECU10P : In case a coupler is connected, a main part is pushed in by hand until sound“Click”. When disconnecting , couplers are pulled, after pushing in the button of the coupler upperpart.
Be careful not to cut the wire of it.
A communication cable connects only the cases at the time of an setting arrangement etc. with
PC serial port by the cable contained in this products.
In addition, it can attach also in the state of power supply ON, or can remove.

fi system Manual ver.4.6.0
Copyright (C) fc design co.,ltd. / http://www.fc-design.com/

1-1

Photo : ECU has two display lamps.
Green : Power Supply Indicator
Lamp

Red : Information Indicator
Lamp ( Same Function as
Dial Controller Lamp)
The lamp on the right-hand side of a photograph is a lamp of the red which performs a system
information display. It is the display of an injection timing signal input, a system error, etc.
Display function is almost same as dial controller lamp. (except a shift-up indicator function)* Please read Chapter (f) “Lamp Display Function “ for details..
The lamp on the left-hand side of a photograph is red lamp ,ECU power supply indicator, when
the power supply is on.
When IG key-off, ECU power OFF is postponed only for between the change check ofarrangement data. In this period an ECU power are supplied from “Backup” wire of system
harness which is connected to battery plus terminal. After that, ECU is turned off and holding data
does not need power supply.

fi system Manual ver.4.6.0
Copyright (C) fc design co.,ltd. / http://www.fc-design.com/

1-2

(b) Fuel Injection Control
The volume of fuel is controlled in time of ON period of injector.
Volume(cc) = Injector flow rate(cc/min) / 60 (sec) x Injector ON period (sec)
By the text after this, time of ON period of injector is called injection time.
You can set injection time to 32msec at the maximum in each cycle. Injection time is calculated asfollows.
Injection time (Ti)= Basic Time(Td) x Startup Compensation x Warm-up Compensation x *Acceleration Compensation+Injector Opening(reaction) time
*Speed-Density System Only (*D-Jetronic version)

You can set these compensation values to “1.0” quickly with each enable/disable property on
software.The lower figure expresses control of injection.

StartupComp.
(Ks)

WarmupComp.
(Kw)*Accel.
Comp.
(Kd)

x

x

x

Basic
Time

Ti

Td
Alpha-Nor
D-jetro(Map)*Speed-Density System Only (*DJetronic version)

StartupInjection
TimeTs

Ti / Ts
ChangeControl
by
R.P.M.

Dial
Contoller+

Asynchronous
Injection
control

Please Read Chapter(e)about “Dial Controller.”

Fuel
Cut
Control

R.P.M.
Limitter

Injector
Opening(reaction)time+

Injector
Drive
time wdth(msec)The outline of each control is explained in the following page.
*“D-Jetronic” is the registered trademark of Bosh AG
fi system Manual ver.4.6.0
Copyright (C) fc design co.,ltd. / http://www.fc-design.com/

1-3

[ About Basic Control Method ]In standard “Alpha-N” version, ECU contorols a injection time according to the intake air
volume estimated with two parameters, “the open angle of throttle” and “engine speed”. In
the version of "alpha-N", the response of the engine is better than other versions.
However, the control of this version needs the adjustment of the map when there are asecular distortion and a condition change, compared with the control of the type thatmeasures the amount of air directly. We also have ECU that controls the following types.
* D-Jetronic ( Speed Density Type,normal,turbo)* Alpha-N with Boost Compensation

Injection Time (WOT) [sec] =air charging efficiency [%]/100 * engine displacement [cc] * air density/ AF ratio / fuel density / ( injector capacity [cc/min] / 60 )In the high speed area, charging
efficiency rises in the engine that uses
a high-speed cam

As larger the throttleboa, the change
becomes steep in thearea of opening of thethrottle from idle.
( And depending on
the volume of
the Intake manifold
after throttle.)

Injection timeidle position.

Throttle

The horizontal partis necessary forthe idle control.

When becoming over 16000 rpm, ECU
controls a Injection time by the parameterof 16000 rpm.

fi system Manual ver.4.6.0
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1-4

“ Basic Injection Time “Throttle - Speed Control Version (Alpha-N)
There is a map of injection time to the volume of intake air determined with two parameters, theopen angle of throttle and engine speed, in ECU, and the “basic injection time” is determined withreference to the map. Even when the open angle of throttle and engine rotation speed take thevalue between axes, the injection time is computed by complement calculation.
An injection map can be edited from PC.
The axis of a map can be set up to 31 at the
maximum to each of the open angleof throttle,
and engine rotation speed. It is possible to set
up arbitrary number of the axis to the arbitrary
axis value in this range.

Speed - Density Control Version (*D-Jetronic)
There is a map of injection time to the volume of intake air determined with two parameters, intake
manifold pressure and engine speed, in ECU, and the “basic injection time” is determined withreference to the map. Other control function is same as “Throttle-Speed Control”.
This Control Method is best for super charged engine(turbo,etc.). In a super charged engine
version, intake manifold pressure is detected to about 2 kg/cm2(1600mmHg).
(Normal version sensor is up to 800mmHg.)* Accelerate Compensation is only for“*D-Jetronic”.
See Detai (Section)*“D-Jetronic” is the registered trademark of Bosh AG

fi system Manual ver.4.6.0
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1-5

“Compensation”
Please read Chapter 2 for details.

Warm-up Compensation(Engine Temperature Compensation)
This is compensating the lack of fuel evaporation and increase in volume of air filled in engine
when engine has got cold.
Start up compensation
This is compensation which increases fuel after starting of engine until it carries out stablerotation.
Start up injection time
This is not a compensation value. It is injection time which will be injected in a period until it
becomes a rotation speed stable.
Asynchronous injection time
Asynchronous injection is the function to perform compensation injection, when change of theintake air volume rapidly between the timings of synchronous injection.
Fuel Cut Control
In engine rotation speed over idol speed, fuel injection is stopped at idle throttle position. Thisfunctions also as an idol R.P.M. limiter.
Accelerate Compensation ( for *D-Jetronic only )This function correct a gap of the air / fuel ratio resulting from change of the intake pressure byacceleration or slowdown. It differs from the asynchronous injection which performs compensation
injection temporarily that the volume of synchronous injection is increased or decreased between acertain set-up cycles.
*“D-Jetronic” is the registered trademark of Bosh AG

fi system Manual ver.4.6.0
Copyright (C) fc design co.,ltd. / http://www.fc-design.com/

1-6

(c) Other Controls“Pump Control”
The pressure of fuel is required for fuel injection. The in-line pump is controlled from ECU. To
suppress the consumption of the battery, ECU intermittent drives the pump in a low rotational
speed according to the amount of a necessary fuel. In a high rotational speed that the flowing
quantity of the fuel increases, ECU drives the pump with PWM. It is possible to perform a setup ofa drive from PC connected with ECU.
*ECU is not measuring the pressure of fuel. Please set up the parameter of ECU, looking at thepressure gauge attached to this products(“Fi System set”) so that required pressure may beobtained.
“Revolution Speed Limitter”
Fuel injection will be stopped if it becomes more than the set-up rotation speed. You can set it asarbitrary values from PC.
“Shift-Up Indicator”
The lamp on the dial controller is turned on when it becomes more than set R.P.M. You can use it
as a shift-up indicator.
*Option “Extended Injector control”
ECU also Contorols Extend Injector for Oxygen injection system(Option).
Please read the description of an oxygen injection system for details.

Please read Chapter 2 for details.

“Internal Log Memory” ( New Function of ECU 1.0.20.12 )ECU can record internal data of seven and a half minutes in the memory.
You can download and view data with the "Fi Log Reader" software.
*Please see the "Fi LogReader" manual for details.

fi system Manual ver.4.6.0
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1-7

(d) Other Parts of System“ Throttle body ”
It is the throttle of a rotary valve. Injector, thethrottle sensor, and the extraction mouth of intakepressure are attached to this.
*)The photo is of the throttle of 32mm boa.

“ Signal interface unit ”
This is the unit which makes the signal for injection
from an ignition signal. This makes 1 time of asignal to two rotations of a crank.
(For 4stroke engine.)*) We have also the version of every clank injection.

“ Temperature sensor ”
The element for temperature detection is enclosed.
It attaches in the cylinder side and the temperatureof engine is detected.

“ Dial Controller ”
There are a dial which changes fuel injection time by
one point temporarily, and a lamp which displays
information in this. The chapter(e) explains fordetails.

“ Fuel pump ”
It is the in line pump for fuel driven on the voltage of
12V. The maximum output pressure is about 4
kgf/cm2. The rated pressure of a system is 2.2 to
2.5 kgf/cm2.

fi system Manual ver.4.6.0
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1-8

“ Fuel pressure regulator “It attaches in the fuel piping. This keeps thepressure of fuel constant.
2.2 to 2.5 kgf/cm^2“ To absorb the pressure fluctuation of thepump“
The pressure of the fuel line has the change for anintermittent drive of thepump. It can be suppressed by the method of the
figure below.
The effect of the damper is achieved when puttingsome air in the fuel piping
immediately before the gauge of pressure.
(closed line.)pressure gauge
fuel pressure regurator
to injector

return to filter inlet
Please put air
for dumping.

from pump outlet

fuel piping“ Pressure sensor “This detects the pressure of intake manifold.
This sensor is only for “D-Jetronic system”
Sensor of version for supercharged engine
maximum : 1600mmHg( about 2kg/cm2 )Sensor of version for normal engine
maximum : 800mmHg ( about 1kg/cm2 )fi system Manual ver.4.6.0
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1-9

Log Function Switch
Log "Function ON/OFF" SW.
turn SW to red mark for Log"ON"

Wire Harness MINI
2Pconnector for Log SW
Brown=SIG, Yellow =GND

Wire Harness MINI
3Pconnector for A/F Sensor
Analog Output
Light Purple=SIG, Yellow=GND

Connect

Fi ﾒｲﾝﾊｰﾈｽ

fi system Manual ver.4.6.0
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1-6

(e) Dial Controller
Photo : Dial Controller

Information
Lamp

Fuel Contorl
Dial“ Function “
The “Dial Controller” is equipped with the dial which can increase or decrease injection time
(whole map) temporarily, and the lamp which displays the information on ECU.
It is possible to change injection time in the quite big range from 0.1 times to 1.9 times by the dial.
A left rotation side is the direction of “rich” (upper scale 1-1.9 time), and a right rotation side is the
direction of “lean” (lower scale 0.1-1 time). The minimum scale is 0.1.
In addition, since a setup of the range corresponding to a dial can be changed into arbitrary values
from PC, adjustment width can be made large (for example, 0.05 time -4 time etc.), or it can be
narrowed (for example, 0.5 times to 1.5 times etc.).

Please read Chapter (f) for “Lamp Display Function” details.

fi system Manual ver.4.6.0
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1-10

The example of use of a “Dial Controller”
Although, as for a dial controller, only a primitive setup of changing the whole can be performed,
according to a way, it can use for the arrangement of a map quite conveniently. The following is
an example of use of a dial.

(1)

After attachment "Fi", when starting the engine for the first time, the engine can bestarted correcting a gap of the injection time of the original map with a dial.
You put engine into operation, turning a dial and changing various injection time first.
You look for a dial position so that engine may carry out stable rotation. After engine
starts, you look for the position which engine strats misfire by turning a dial. Thereby,
you can know the “Rich” side limit of the injection time, and the limit by the side of“Lean”. You read the scale of a position which turned to the ”Rich" side a little from the
middle of those dial positions.You can know that that is the best injection time near an
idol. It is good for you to adjust the injection time of the idol area of a map with thisvalue of a dial.

(2)

It may be good to apply the multiple value which corrected an idol's injection time also
to the whole map.

(3)

It is very difficult to touch a dial during a runnig, so you turn a dial before running andyou run at a certain degree of throttle. You run in the some dial position and read thedial position which becomes the largest power. And you correct the injection time ofdomain, which you check on the map.

(4)

When decomposing a fuel piping system, it enables you to lower fuel pressure simply
by continuing operating engine, with a pump suspended. At this time, it can lower toremarkable low pressure by consumption of fuel pressure with engine by turning a dial
to a rich side with descent of fuel pressure.

fi system Manual ver.4.6.0
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1-11

(f) Lamp Display Function
The red display lamp of an ECU and the display lamp on “Dial Controller” display the following
information.

(1)

The display of an injection signal input
An injection pulse will be inputted into ECU if engine is rotated using a kick pedal or acell motor. When not engine starting, ECU performs “ON” and “Off” an information
lamp at every input of a signal. If engine starts, this display function will be ended. You
can know whether the function of a signal unit is normal by this display.

(2)

Shift-Up Indicator( *Dial Controller lamp only)
The light is switched on when it becomes more than the engine rotation speed set upby control software (SWB).

(3)

Injector wiring disconnection warning
The light is switched on when wiring to injector is disconnected. A lighting pattern is
as follows.
0.2secONOFF
1.2sec(4)

Pump wiring disconnection warning
The light is switched on when wiring to a pump is disconnected. A lighting pattern is
as follows.( *Note1 )0.2secONOFF
1.2sec(5)Battery voltage warning
The light is switched on when the voltage of a battery becomes low too much. (* Note
1 and 2) A lighting pattern is as follows.
0.2secONOFF
1.2secfi system Manual ver.4.6.0
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1-12

(6)

Warning at 100% duty cycle
The light is switched on when the injection time exceeds time while a crank rotates
two times. That is, it means that only injection time as set up cannot be injected.
Usually, although it is thought that such a thing does not happen, when this display
comes out and engine is turning at ” Lean”, it means that the injection capacity of
injector is insufficient. A lighting pattern is as follows.
0.2secONOFF
1.2sec(7)

Setting map reading error warning
ECU reads the map for control from a memory, when starting. This warning display isturned on when a map has an error. When this display comes out, a controller stops all
control. When a warning display does not disappear even if it reboots ECU after
transmitting the map saved at PC again, please contact us. A lighting pattern is asfollows.
0.2secONOFF
1.2sec1.2sec*Note1 Warning - Voltage & Pump
Pump wiring disconnection warning and Battery voltage warning are detected only
when the drive mode of a pump is “Pulse Drive”. They are not detected when the drivemode of a pump is a PWM drive. (However, they are detected at the time of starting of ECU.)*Note2 Battery Voltage Warning
Battery voltage warning is turned on when it’s voltage becomes less than 12volts. Usually,
since it is normal that the battery is maintaining more than 12volts, when such a display
comes out, please charge the battery promptly. Since it is thought that the pump drive cycle
is too short (too much driven)when this display comes out frequently, I ask you to improve apump drive setup. In addition, even when this display comes out, injection control does not
stop. When it should become low voltage during a run, the fuel volume of injection
decreases by the fall of the pump pressure. In this case, it is possible to run by turning a dial
controller to a rich side and compensating the insufficiency of the fuel volume of injection.

fi system Manual ver.4.6.0
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1-13

[ Getting Started ]Thank you very much for purchasing “Fi” system full kit. The following texts explain aflow from attachment to starting the engine.
[ Attachment and adjustment of ECU ](1)

ECU and wiring (harness) are attached in vehicles.
*Please refer to "guidance of harness connection”.
*Please attach a power supply wire through a fuse.

(2)

You turn on the ignition switch. If there is no problem in attachment of harness, ECU
drives a pump by intermittence, and turn on lamp of a dial controller, when
preparation is completed.

(3)

If you give rotation to engine by the starter or the kick pedal, the signal for fuelinjection will be generated by “Signal Interface Unit” from an ignition signal. When thissignal is inputted into ECU, the lamp of a dial controller will repeat ON and OFF forevery input. When a lamp does not light up, ignition is not carried out or ECU has notreceived the signal.

(4)

If the check of a signal is completed, the throttle sensor of a throttle body will be
adjusted, and an injection setup in ECU will be adjusted to injector capacity. Pleaseinstall SettingWorkbench (SWB) in a personal computer and connect with ECU by thecommunication cable. Please start SWB and read an injection setup from ECU.
(Please save a setup at a file before changing a setup. Then, you can redo from the
beginning later.)Your Throttle Body : Diameter

mm : injector capacity

cc/min *1

How to adjust a throttle sensor is explained in the chapter of "adjustment of the
hardware at the time of attachment" in a manual.
If you received the throttle body from us at the same time,we already have set sensor
range & injector capacity to the ECU.

fi system Manual ver.4.6.0
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S-01

(5) The injector capacity is recorded in ECU. An injection setup needs to be adjusted,when the injector capacity of your throttle body differs from this, and when the engine
displacement volume of the injection control map currently recorded differs from thatof your vehicles. The whole injection map is multiplied by the numerical value whichis calcurated by the following formulas.
Specification of your “ECU” map.
Injector CapacitySpec

cc/min *3
Displacement

cc *2

Value A = Injector Capacity in “ECU” *3 / Injector Capacity of Your Throttle Body *1
Value B = Your Engine Displacement / Displacement of “ECU” map spec.*2
Value ( for multiply ) = ValueA X Value B
How to multiply the whole injection map and the value is explained in the chapter of“Edit Basic Injection Time Settings” - “(B) Multiplying “Gain” to every domain” in amanual.
* It is convenient to use the import export function to change to the setting matched tothe engine displacement and the capacity of the injector. (see section 3-5.)[ Starting Engine](1) Let's start the engine. Please check that fuel pressure is the 2.5 kgf/cm2
neighborhood and that the lamp has repeated lighting and putting out lights for every
signal input.
(2) Does your engine start?
If Setting is “Rich” or “Lean”, Engine will not start easily. Please turn a dial of ”DialController” (to rich side or lean side) and re-challenge.
* If air is contained into fuel piping, it will not start easily. Please remove the air in
piping.
(3) Please turn a dial to rich or lean at the time of “idle”. Air By Fuel Ratio is the 12neighborhoods when engine rotation speed rises most. Please adjust an “idle”
rotation speed by the idol screw of a throttle body(Air) and SWB(Fuel).
(4) Here, it becomes the work which changes an injection setup according to your engine.
If the engine spec of the map in ECU is close to that of your engine, an injection
setup will be correct in general also at a running. Engine will become better andbetter if the injection map is set finely. The injection time at power comes out most islooked for to every rotation speed and Throttle degree domain,by changing a dialvalue of “DialController” . This will become very easy if you use “air by fuel ratio
meter”.

fi system Manual ver.4.6.0
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S-02

(A) "Hardwear Installation"(a) "Layout "Figure below is one layout example.

Dial Controller

fuelpressure
gage
fuel pumpsignal interface
unit
ECU

pressure
regulator

fuel filter

fi system Manual ver.4.6.0
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A-01

(A) "Hardwear Installation"(a) "Layout "Pressure Gauge

Fuel Tank
Fuel
FilterFuel
Pump

Pressure
Regurator

Main SW.
Dial Controller

ECU

SignalInterface
unit

BatteryEngineTemperature
SensorInjector

Throttle
Position
SensorIgnition Coil

*1 Please install the fuel hose in the fuel tank. Please return the return hose directly to the fueltank to prevent an air bite of the fuel pump.
*2 Please connect it with wiring from which the power supply is supplied with main key ON.
*3 Please connect the backup power supply wiring with the wiring connected with the plus
terminal of the battery. Please connect minus wiring with the frame earth or the minus terminalof the battery.
*4 Please connect wiring from the signal interface unit with the plus side terminal of the
sparking coil.
*5 Please install the temperature sensor near the head of the engine.
*6 Installation of injector on throttle body or intake manifold.
*7 The fuel pump is driven like the pulse because of the power saving. The pressure fluctuation
can be absorbed to the air collected in the hose in the *7 part.

fi system Manual ver.4.6.0
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A-01B

(b) Guidance of wire harness connection.
engine side

Externals of the harness

boost sensor
wiring *1
throttle
sensorwiringsignalinterfacewiringInjector wiring( 2 wiring fortwin injector
system.)temperature
sensor wiring“dial controller”
wiringECU *2connector

pumpwiringbackuppower(+
BATT)
wiringground (0V)
wiring(with roundterminal)*1 D-JEtronic Version Only
*2 ECU : Electoronic Control Unit

(1)

Please decide the position where
each unit is installed.

(2)

Please install each unit, and fix.

(3)

Please fix the harness to thevehicle by using the band etc.

+BATT power(after IG switch)wiring

The harness kit is designed so that ECU isinstalled at the center of the vehicle.
fi system Manual ver.4.6.0
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A-02

* Attention : Please remove the terminal from the battery before
beginning installing.
* Attention : Please connect an orange, red wiring to the line after
the fuse.

(4)+BATT power (after IG switch)wiring(orange) is connected withthe wiring where the +batt poweris supplied when the IG key switch
is turned on. In the case of Honda
Monkey,"IG" line is usually in themeter case(front light case).

In the Meter (front light) case.

Two connectors ( for +BATTIG and +BATT-backup) are inthis kit. (use If you want.)+BATT power (after IG switch) cable(orange)fi system Manual ver.4.6.0
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A-03

(5)

Please connect red wiring (red)with the line connected with theplus terminal of the battery.
(After off the key, this power
supply is used for ECU only
between a few seconds.
Afterwards, this power supply is
not used. ECU doesn‘t need an
extra standby power requirement. )(6)

Please install the earth connection
line (with round terminal) in theearth of the body (battery minus).

(7)

Please confirm not be wrong theconnection of the plus and theminus of wiring.

Connecting red wiring to the plus
line of battery.

red wiring : +batt (back up power)
earth connection wiring (with roundterminal)fi system Manual ver.4.6.0
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A-04

(8)

Please connect each unit to the wiring connector.

throttle sensor (3pins connector)

injector (2pins gray connector)

dial controller (6pins connector)

ECU connector(8pins and 10pins connector)

dial controller

fi system Manual ver.4.6.0
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A-05

(8)

Please connect each unit to the wiring connector.

signal interface unit
( 4pins connector with light-purple
wiring)Please connect female connectorof light-purple wiring to the (+)
terminal of ignition coil,and conect
the vehicle wiring, connected withthe coil (+) terminal originally, tothe male connector of light-purple
wiring.
In the case of HONDA
MONKEY(current model),coil(+)
terminal color is green.
*Please contact me when you want to
use it with a beam type timing sensor.

(eco-run vehicle etc.)

fuel pump wiring
Please connect pink and whitewiring to connector of fuel pump.
pink wiring is (+), white wiring is (-).
*If you don’t need that the fuel pumpis not controlled by ECU, it is necessary
to install the dummy resistance.
(about 1kohm)

fi system Manual ver.4.6.0
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A-06

(8)

Please connect each unit to the wiring connector.

As for the temperature sensor, around terminal is attached to one
side. Please fix it to the engine.
The connector is connected withwhite connector of two pins in
wiring.

fi system Manual ver.4.6.0
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A-07

(8)

Please connect each unit to the wiring connector.

When you start using Logger Function, please connect the swittch and the wiring to the Fi
system harness referring to figure below.

*Please see the "Fi LogReader" manual for details.
Log Switch
When you turn on( turn to thedirection of red mark),Logging
starts.

2P connector for Log SW.
brown=sig, yellow=GND
3P connector for AF analog.
light purple=sig, yellow=GND

connecttemperature sensor
connector

Fi Main Harness

When you use GRID LX-2 AF sensor, please connect "Analog2 output" to 3P connector by using
small black connector of the attachment for the product.
Black : Caribration wire.
Yellow : Analog1 output.

Brown : Analog2 output.
Green : GND*Please connect green
wire to both of Fi system
harness and the battery(power) GND(-).

Red : 12V input (power) +Blue : Heater GND.

fi system Manual ver.4.6.0
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A-07-B(9)First of all, please confirm the connection of wiring (Especially, (+) and (-)
connection of the power supply).
Please turn on the power (IG) switch after confirming.
When ECU starts normally, the pump is driven about ten times by thepulse, and dial controller's LED turns on.
Please do initializing referring to (3) "configure and adjustment ” chapterof the user’s manual.
*When you bought the throttle body from us at the same time, theadjustment of the throttle sensor and the setting of the capacity of theinjector have already been done. If you have already informed “FC
design” of the displacement of the engine, a rough adjustment of theinjection map is done.
*Please refer to "Start-up manual" for the adjusted parameters.

D-jetronic ( speed density version )Please connect boost ( manifold pressure ) sensor.

fi system Manual ver.4.6.0
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A-08

(c) Installation of fuel piping
Please execute the air pulling out of the fuel piping after installing the fuelpiping. ( Please refer to next section. )If a fuel hose iswarmed by the drier
etc., it can insert in afuel tap's pipe etc.
easily.

Diagram of the fuel piping

Throttle Body / FUEL INJECTOR

FUEL TANKPRESSURE
GAGE

PRESSURE REGULATOR

Return pipe

ＦＵＥＬ ＰＵＭＰ“ To absorb thepressure fluctuationof the pump“
The effect of thedamper is achieved
when putting some air in
the fuel piping
immediately before thegauge of ressure.
(closed line)

FUEL FILTER

fuel pump drive method :After
IG switch is turned ON. The
terminal of white wiring iscontacted on the body earth,then the pump will turn.

Please install the fuel pump in aposition that is lower than thetank.
*) It becomes easy for air and thevapor to enter the inside if thepump is installed in a position
that is higher than the fuel tankoutlet. In that case, the fuelcannot be pressurized.

FUEL TANKIn standard piping, please return "Return pipe"
directly to the fuel tank not to put air or vapor in
the fuel line and pump.
When it is difficult to return the tank "Returnpipe" directly, please return it to the pipe at a
position near the tank.

Return pipe

ＦＵＥＬ ＰＵＭＰFUEL FILTERfi system Manual ver.4.6.0
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A-09

InletOutletFuel Pump

The atmosphericpressure(Normal)orintake manifoldpressure. (forsuperchaged
engine.)Returnto the filter inlet or
fuel tank

Fuel Line Inlet

Fuel pressure regulator

Example. The connection of the pump and regulator.
from the fuel tank.
To the injector.

return.

Note : Although there is few case (it will fall immediately when pressure goes up for a moment) fuelpressure does not go up ,don’t worry about it. In this case, small dust entered in the pressure
regulator and the seal can not work temporarily. In this case, by means of the above-mentioned fuelpump drive method is performed, almost all cases, flushing dust with fuel flow.and the dust aretrapped by the fuel filter.

fi system Manual ver.4.6.0
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A-10

(d) Execute the air pulling out of the fuel piping.
Fuel tank

Pleaseopen thefuel cock.
Pressure
Regulator
Pressuregauge

Pleaseremove thefuel line fromthe injector.

FuelfilterFuel
pump

The air thatcame off
returns to thetank.

the fuel pumpin a position
that is lower
than the tank.

Please do the inlet up, and beat by
the palm lightly.

Please catchthe fuel thatcomes out
from the linewith vessel.

Pleaseoperate thepump.

1) Please arrange the fuel pump at a position that is lower than the tank.
2) Please remove the fuel line from the injector.
3) Please catch the fuel that comes out from the line with vessel.
4) Please open the fuel cock.
5) Please operate the pump.
Please drive the pump for one second every a few seconds.
* If you finish installing wire harness.
After IG switch is turned ON, the terminal of white wiring is contacted on the body earth,then the pump will turn.
6) Please do the inlet up, and beat by the palm lightly.
7) The air that came off returns to the tank.
8) Please close the exit of the fuel when air in the line comes off.
9) The fuel pressure begins to go up when air in the fuel line to the pump inlet and inside of thepump comes off.
10) When the fuel pressure doesn't rise, air remains.
11) Please drive the fuel pump for a while when the pump begins to send the fuel with the exit of
the fuel line opened. Please put out garbage the fuel line and in the fuel pump by this operation.
12) Please connect the fuel line with the injector, raise the fuel pressure, and confirm
the operation of the regulator.
* Please test the method of next page when the air of the fuel line doesn't come off easily.
fi system Manual ver.4.6.0
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A-11

Fuel tank

Pleaseopen thefuel cock.
Pressure
Regulator
Pressuregauge

Pleaseremove thefuel line fromthe injector.

Pleaseconnect thehand pumpsuch as vessel
for theshampoo withthe exit of thefuel line.

the fuel pumpin a position
that is lower
than the tank.

FuelfilterFuel
pump

Please catchthe fuel thatcomes out
from the linewith vessel.

Pleaseoperate thepump.
( To help
pulling air.)

1) Please arrange the fuel pump at a position that is lower than the tank.
hand pump
2) Please remove the fuel line from the injector.
3) Please catch the fuel that comes out from the line with vessel.
4) Please open the fuel cock.
5) Please connect the hand pump such as vessel for the shampoo ( photo : example) with theexit of the fuel line.
6) Please operate the fuel pump. ( To help pullinng air from fuel line exit.)
Please drive the pump for one second every a few seconds.
* If you finish installing wire harness.
After IG switch is turned ON, the terminal of white wiring is contacted on the body earth,then the pump will turn.
7) Please push the hand pump at the same time. Air is pulled out from the fuel line exit.
8) The fuel pressure begins to go up when air in the fuel line to the pump inlet and inside of thepump comes off.
9) When the fuel pressure doesn't rise, air remains.
10) Please drive the fuel pump for a while when the pump begins to send the fuel with the exit of
the fuel line opened. Please put out garbage the fuel line and in the fuel pump by this operation.
11) Please connect the fuel line with the injector, raise the fuel pressure, and confirm
the operation of the regulator.

fi system Manual ver.4.6.0
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A-12

(e) When air enters while operating and pressure doesn't go up.
After the air pulling out at the installation, air might enter the fuel line while the Fi
system is working and the fuel pressure not rise. Please refer to the following
hints so as not to put air in the fuel line.

Please return"Return pipe"
directly to the fueltank if it is possible.

Throttle Body / FUEL INJECTORPRESSURE
GAGE

PRESSURE
REGULATOR

Higherposition
FUEL TANK(D)
Return pipe

(A)

ＦＵＥＬ ＰＵＭＰ

Higherposition

Straight(B) and short
FUEL FILTER(A) Please install the fuel pump( inlet) and fuel filter in a position that is lower than thetank.
(B) Please install the fuel line from the fuel tank to the inlet of the fuel pump as short
as possible, and straight.
(C) Please set driving time of the pump long when the fuel pressure doesn't go up.
(D) Please return "Return pipe" directly to the fuel tank if it is possible.

fi system Manual ver.4.6.0
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A-13

(2) “ Tutorial of PC software [ SWB ]”The setting value of ECUs, such as basic injection time and a compensation value, is set up by
the control software “Setting Workbench For Windows” (the text after this describes “SWB”)
which operate with the personal computer (*Note1) of Windows (*Note2). Next, the outline of how to
use this control software is explained.
*Note1 ) A serial port is required for the personal computer which uses SWB. When there is noserial port, we recommend you use of a USB serial conversion adapter.
*Note2 ) Windows98 Second Edition, Windows Me, Windows2000, Windows XP(a) How to Install
Please double-click Setup.exe in the folder corresponding to each version of Windows. In
Windows2000 and WindowsXP, please double-click Setting Workbench.msi. Please complete
installation with reference to the message displayed on a screen.
The newest information about the combination of corresponding OS and setup file, and installation
method are indicated on the label of a CD-ROM case. Please perform after a check.
*When you install, please be sure to end other applications.

Icon of “SWB”

fi system Manual ver.4.6.0
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2-1

(b) Outline of “SWB”“SWB” mainly has the following functions.

(1)

Edit “Basic Injection Time” Settings

p2-11

A setup of “basic injection time” is possible. It is possible to set the rotation speed axis
and *throttle angle axis of the point which sets up “basic injection time”, as arbitraryvalues. It is possible to multiply the whole setting map or arbitrary domains by aconstant value.
*In D-Jetronic, throttle angle axis changes intake pressure axis.
(2)

Edit “Compensation Table” Settings

p2-22

The table of the following compensation coefficients can be edited.
Warm-up Compensation
Start up compensation
Accelerate Compensation ( for *D-Jetronic only )(3)

Change Enable/Disable of Each Compensation

p2-18

You can set these compensation values to “1.0” quickly with each enable/disableproperty.
(4)

Edit “Start-up Injection Time” Setting

p2-24

Setting of this function is also edited in the same window as edit of a compensationtable.
(5)

Edit “Asynchronous Injection Time” Setting

p2-24

Setting of this function is also edited in the same window as edit of a compensationtable. You can stop “Asynchronous Injecton” quickly with enable/disable property.
(6)

Edit “Fuel Cut Control” Setting

p2-24

Setting of this function is also edited in the same window as edit of a compensationtable.
(7)

Edit ”Revolution Speed Limitter ” Setting p2-21
You can change R.P.M. value of revolution speed limitter.

(8)

Edit “Shift-Up Indicator ( Information Lamp of Revolution Speed ) p2-21
You can set the rotation speed which an indicator lamp turns on as arbitrary values.

fi system Manual ver.4.6.0
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2-2

(9)

Edit “Pump Control” Setting

p2-19

You can set up the pump control settings in “Pump Setting” window.
(10)

Change Enable / Disable of Dial Compensation of “Dial Controller”

p2-18

You can disable the fuel injection time compensation dial of a dial controller. When you
use this product without connecting a “Dial Controller”, please set up “disable”.
(11)

Edit “Hardwear Configuration”
The following setup can be changed in this window.
Throttle bore and trottle sensor range.
Injector flow rate (feed rate, cc/min).
Idle Throttle position(%).
Injector reaction period(injector dead time,msec).
Dial Controller range.
Intake pressure sensor (boost sensor) range.
*Since the item set up on this window is adjusted to the composition parts of thisproducts[set], before shipping, you do not need to change those settings.

(10)

ECU Data Monitor

p2-27

You can see the information in ECU using a "data monitor" function. An updating cycle isabout 1 time in 1 second.

(11)

Read settings form ECU and save to the filep2-7, p2-9, p2-10, p2-26

A setup read from ECU can be saved at a file. Moreover, a setup saved at the file canalso be sent to ECU.

fi system Manual ver.4.6.0
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2-3

Memo

fi system Manual ver.4.6.0
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2-4

(c) Start and Exit
Start “SWB”
Please click [Start] > [programs] > [Setting Workbench] > Setting Workbench ,It will start

The 2nd “SWB” can be started when one “SWB” has started. For example, it is possible to edit a
The 2nd “SWB” can be started when one “SWB” has started. For example, it is possible to edit a
map etc., comparing the screen of two “SWB”. However, since “SWB” does not take out
map etc., comparing the screen of two “SWB”. However, since “SWB” does not take out
warning to saving to the same file in this case, be careful of management of a file.
warning to saving to the same file in this case, be careful of management of a file.

Exit “SWB”
SWB will be ended when "end" button in the window upper part is clicked, or X buttons at the rightend of an upper end are clicked, or ”Exit" of a ”File" menu is clicked. At this time,since themessage which checks saving to the file is displayed when the read data has change, please click“save” or “cancel”.

fi system Manual ver.4.6.0
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2-5

(d) How to Set-up the Settings -- “Map”

The flow of the work in the case of changing a setup is explained.

After starting, setting data is empty in SWB.
First, you need to read data from ECU or a file.
In this time, you cannot choose any items otherthan ”Open file" and ”ECU >> SWB”

Read from file

Read from ECU
2-7*(A) We recommend you to save the data readfrom ECU bfore editing as much as possible.

2-9

A

Next, you change the item of the purposes,
such as basic injection time ,compensation,
pump setup,etc.
Then, you save data or transmit data to ECU.
Keep in mind that change is not reflected in a
setup in ECU until it “transmits.”

CahngeSettings

2-11
~
2-23

*(B) We recommend you to save data before
transmission at a file.
Since ECU reflects change in control
immediately after transmission, there isespecially no necessity of restart engine.
A changed setup is saved at ECU, when IG
switch is cut (when ECU is turned off).

Save toSend
to ECUthe file
2-10

B

2-24

If the present setup is previously read from ECU before reading a setup from a file whenIf the present setup is previously read from ECU before reading a setup from a file whenchanging a setup read from the file and sending to ECU, only a part with change will bechanging a setup read from the file and sending to ECU, only a part with change will betransmitted. The function to transmit only a change part is convenient, when changing atransmitted. The function to transmit only a change part is convenient, when changing a
setup and arranging it one after another.
setup and arranging it one after another.

fi system Manual ver.4.6.0
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2-6

(e) Read Settings from ECU

You connect a personal computer with ECU by theattached communication cable first. Since the windowof "COM PORT" opens when a "ECU >> PC" button
is pushed, please set up a port number and click the"O.K." button.
A mouse icon becomes a sandglass display during
reception, and SWB cannot be operated in themeantime. Reception takes about about 10 seconds.
When the message of the completion is displayed
after reception is completed, please click the "O.K."
button.
The port number of a serial port can be checked with" Device Manager ”window of your personal computer.
Since SWB displays an error message when thewrong port number is set up, please click a[ECU>>PC] button again after clicking [Tool] >[Option] of a menu bar and clicking the right numberof the ”COM PORT“ and the ”O.K.“ button. After that,please click [ECU>>PC] button again.

Connect “Communication Cable”[ ECU >> PC ] button“COM PORT” Window

Device Manager Window[start] > [settings] > [control panel] > [system]
Choose [Hardwear] tab, and click [ Device Manager]
button.

Correction of
a “COM PORT” number

fi system Manual ver.4.6.0
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2-7

If reception of a setup is completed, it will become ascreen display as shown in the following figure.

Date of Last Update

ID of ECU

ID of ECU and date of last update are displayed on a
status bar.
Status bar*Transmission and reception of data with ECU are possible only at SWB corresponding to the*Transmission and reception of data with ECU are possible only at SWB corresponding to theversion of each ECU. Be sure to use SWB set up from CD-ROM appended to the product, or
version of each ECU. Be sure to use SWB set up from CD-ROM appended to the product, or
SWB upgraded to the correspondence version.
SWB upgraded to the correspondence version.

fi system Manual ver.4.6.0
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2-8

(f) Read Settings from the File

If the ”Open" button in the window upper part isclicked, the dialog of “Open File” will apear. Please
select a setting file to open and click the button“Open.” The extension of a setting file is .swp. Whenreading is completed and the message of “reading
completed” will be displayed, please click [O.K.]
button.

“Open” Button“Open File” Dialog“Reading Completed”*A setup of hardware is saved at the setting file. The data received and saved from ECU with
*A setup of hardware is saved at the setting file. The data received and saved from ECU withdifferent ID cannot be transmitted.
different ID cannot be transmitted.

fi system Manual ver.4.6.0
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2-9

(f') To change the maximum value of R.P.M. display.

In SettingWorkbench, to make the map easy tosee, the maximum value of the display R.P.M. axis
can be changed.
How to change display R.P.M. Max.
Please click "menu" >> "View" >> "Change R.P.M.
Axis Max".
Please input the value to the box and click OK.
The maximum value that can be input is 16000RPM.
(Even if the display is changed, a R.P.M. maximum
value of the MAP setting is not changed. )The injection map of the maximum value 12500 rpm becomes hard to see in thedisplay up to 16000 rpm.
It becomes easy to expect the change to 12500 rpm by the above-mentioned method.
Of course, if the maximum value of MAP is as many as 16000 rpm, it is possible to use
it for the R.P.M. that sees easily by adjusting it.
(Even if display maximum RPM is changed, an actual map is not changed. )fi system Manual ver.4.6.0
Copyright (C) fc design co.,ltd. / http://www.fc-design.com/

2-8a(g) Save Settings to the File

If a setup read from the file is changed or data isreceived, you can save those data at a file. ECU ID
and last update of readed setteing are displayed on a
status bar.
A comment can be added to the file to save. For
example, engine specifications, such as displacement
volume, a setting place, the feature of a setup, etc.
can be written in freely. When you click “File" > ”Save
As” from a menu bar,SWB displays the dialog box ofa comment input.
(if you will carry out overwrite, please click ”File"> ”Save” of a menu bar.)

Date of Last Update

ID of ECU

Status bar

When this dialog box is displayed and it is going tosave a setup read from the file, the comment in thefile saved at origin is displayed on the window. In thecase of the data read from ECU, it is displayed as “No
Comment.” Input a comment here freely and click the“O.K.” button. Please click “O.K.” to save with thecomment currently displayed. Pleaseclick ”Cancel“ button, when a comment is
unnecessary. In this case, a comment is savedwith ”No Comment.“
If "O.K." or "cancellation" button is clicked incomment dialog box, the dialog box of ”Save file" will
be displayed. Please save file in arbitrary file names
and folders.

Save As ...

Comment dialog box

You can check comment of current setting at "file comment" in the “Data Property “window,
You can check comment of current setting at "file comment" in the “Data Property “window,
displayed on clicks "edit" > "property" of a menu bar.
displayed on clicks "edit" > "property" of a menu bar.

fi system Manual ver.4.6.0
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2-10

(h) Edit “Basic Injection Time” Settings* In the case of the D-Jetronic version, please read "the throttle angle" as ”intake pressure."
How to change a setup of basic injection time is
explained in this chapter.
Basic injection time can be changed by the following
two methods.
(A) The method of changing a value for every
point set up by the engine rotation speed axis andthrottle angle axis.
(B) The method of multiplying “Gain” to every
domain of throttle angle.

every point set up by the engine
rotation speed axis and throttle
angle axis.

(A) “Changing a value for every MAP point”
If the tab of ”Bsic Map" is clicked, the screen of basic
injection time will open.You can change a value in theform of the window lower part.
When you click
button of ”Edit RPM Axis"and ”Edit Throttle Axis ”, the point of which you can
edit “injection time” moves. Please move a point towhitch you want to set up. The current point is shownby blue circle.
Ifbutton is clicked, a point will jump to an axis ofend.
Moreover, when you delete the axis which became
unnecessary or you newly increase an axis between
axes, please click
button of each axis window.

the tab of ”Bsic Map"

”Edit RPM Axis" and ”Edit Throttle Axis ”

The position of an axis can be adjusted with slider.
You can input a value directly to,and click ”O.K.“ button. In this case, you need to input
a value between neighboring axes.
Injection time settings of points in a plane at the
selected R.P.M. axis are displayed on right sidegraph window.It will be good to set up referring to left
side 3D display and right side 2D display.

2D Display (points in a plane at the
selected R.P.M. axis )You can change injection time with the slider, can also put a direct value intobox
, and push ”O.K." button on“Injection Time” window.
“Injection Time” window.

fi system Manual ver.4.6.0
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2-11

When the point of graph has exceeded the maximumof a vertical axis in the result of editing injection time,please click ”View" > ”Standard View” of a menu bar.
The maximum value of a veratical axis will be
adjusted automatically. Moreover, if ”View" > ”Zoom
In" of a menu bar is clicked, graph will be displayed
zooming in low rotation speed and low throttle angle.
This is convenient when changing an idol domain.

click ”View" > ”Standard View”(B) Multiplying “Gain”
When you click the ”Set by Gain" button of the ”Input
Method" window, the window that has many sliders
for adjustment displays. Please adjusta window position so that a map display is in sight, asshown in the right figure.
(B-1) How to use multiplier ,“Gain”
The slider
in a "whole Map Gain"window is used when multiply a value to the injection
time of all points.
“Set by Gain” Window“Input Method”

whole Map Gain

"Gain of Throttle Range" window

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2-12

( i ) Change Enable/Disable of Each Compensation

You can set these compensation values to “1.0”quickly with each enable/disable property.
An enable/ disable check boxes
are in the form of
the compensation tab left lower side. The eachcompensations are effective when check is on in thebox. ( details are the following. )Please disable them when you want to adjust only abasic map or when you wants to know the effect of thecompensation.
The enable / disable property of the dial compensation
can be set here.
If you want to use the system without the dial
controller , please off the check on the box of the [ Dial
Control ] .

CheckEngine Temp.

Start Up

Asynchronous
injection

Dial Control

ONOFF
the compensation value of Warming- the Warming-Up Compensation
Up Compensation is determined by value is 1.0
temperuture sensor.
the compensation value of Startup
the Startupp Compensation
Compensation is determined byvalue is 1.0
temperuture sensor at engine
starting.
Asynchronous injection is executed Asynchronous injection is notacording to the throttle sensor speed executed.
and setting.
the compensation value of Dial
Controller is determined by dail
position.

the Dial Controller value is 1.0

NOTE
NOTE: :
D-JetroCompensation] is added. see page 2-25.
D-Jetroversion
version [ Accelerate[ Accelerate Compensation] is added. see page 2-25.
supercharged
Compensation] is added. see page 2-26.
superchargedversion
version [ Boost[ Boost Compensation] is added. see page 2-26.

fi system Manual ver.4.6.0
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2-18

( j ) Edit “Pump Control” Setting

The pressure of fuel is required for fuel injection. The in-line pump is controlled from ECU. To
suppress the consumption of the battery, ECU intermittent drives the pump in a low rotational speed
according to the amount of a necessary fuel. In a high rotational speed that the flowing quantity of
the fuel increases, ECU drives the pump with PWM( pulse width modulation).
ECU judges the interval of intermittent based on the total of the fuel injection time and the injector
capacity. Driving time of the pump is judged based on the voltage of the battery. The setting of thePWM drive can set duty rate according to the rotational speed. Each setting can be changed fromPC.
ECU is not measuring the pressure of fuel. Please set up the parameter of ECU, looking at thepressure gauge attached to this products(“Fi System set”) so that required pressure may beobtained.
It can be a switch according to the rotational speed as the intermittent drive by the low rotation, and
the PWM drive by the high rotation. You can set theswitch rotational speed.
When the power supply is turned on, to give the fuelpressure in the system starting, pump is driven several
times. The number of drive can be set.
The form of the pump drive setting appears by clickmenu > [tool] > [pump setting].
[ Intermitannt drive ( Low R.P.M. ) anddiriving number at system starting ]pump driving number stsystem starting. 0 to 32
Setting large number.
>> driving the pumplong.( pressure up)

Setting large number.
>> The interval of anintermittent drive
shortens.

Setting small number>> driving the pumpshort.(pressure down)

Setting small number>> The interval of anintermittent drive
becomes long.
* In the same [ Drive
Frequency ] setting,intermittent time shortensas the setting of [Injector
Capacity ] increases.

Drive Frequency

PUMP

ON

OFF

ON
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2-19

[ PWM drive (High R.P.M.) ]The setting of duty(%) can be done in the PWM drive in each R.P.M.

Changing point to edit

Add or delete the point

Cahnging duty(%)
value of point.
Please input
value and click[OK] to apply.
The circle markindicates selected
point to edit.

Cahnging R.P.M. value ofpoint. Please input value
and click [OK] to apply.

You can alsochange theduty(%) by slider.

[ Intermitannt drive <> PWM drive mode change. ]When a value that issmaller than 500rpm is
set in Change rpm, it
becomes PWM drive awhole RPM.

Cahnging R.P.M. value ofmode change. Please
input value and click [OK]to apply.
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2-20

( k ) Edit ”Revolution Speed Limitter ” & " Indicator "Setting“Revolution Speed Limitter”
The ECU will stop Fuel injection if engine rpm becomes
more than [ Rev.Limitation] value. You can set it at theform of the compensation tab left lower side.

Cahnging Rev Limitation
value. Please input value
and click [OK] to apply.

Please refer to figure for changing the value.
“Shift-Up Indicator”
The Information lamp on the dial controller is turned onwhen it becomes more than [ Shift Up Ind.] value. You
can use it as a shift-up indicator.

Please refer to figure for changing the value.
NOTE : When the lamp displays the error, thelamp doesn't light even if the rotational speed is
becoming more than the set value.

Cahnging Shift Up Ind.
value. Please input value
and click [OK] to apply.

Information lampfi system Manual ver.4.6.0
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2-21

( l ) Edit “Compensation Table” Settings

This section explains the method of editing the following compensation values.
Warm-up Compensation
Start up compensation
Start up injection time
Asynchronous injection time
Fuel Cut Control(Accelerate Compensation for *D-Jetronic only )There is the form of changing each values at [ Compensation ] tab.
[How to Change]
First of all, please select the compensation value that you want to edit from the combo box.
The compensation value is displayed in the graph as follows.
(1)The value of the sensor for the compensation is a horizontal axis.
(2)The correction value is a longitudinal axis.
Please refer to figure for the method of changing each value.

1) Selecting thecompensation value thatyou want to edit

The circle markindicates selected
point to edit.

2) Changing point to edit.

Cahnging horizontal valueof point. Please input
value and click [OK] toapply.

Add or delete the point.
You can set the points up
to 15.

You can alsochange thelongitudinal value
by slider.

fi system Manual ver.4.6.0
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Cahnging
Longitudinalvalue of point.
Please input
value and click[OK] to apply.

2-22

[ Compensations ]Warm-up Compensation(Engine Temperature Compensation)
This compensation is compensating the lack of fuelevaporation and increase in volume of air filled inengine when engine has got cold.
You can set the value to each temperature points up
to 3.5. Usually, 1.0 or more values are set to thetemperature of 70 to 80 degrees C or less.

Start up compensation
This is compensation which increases fuel after
starting of engine until it carries out stable rotation. At
the time of engine starting, a setting value isdetermined from the table of this compensation setup
based on engine temperature. After starting reduces
a compensation value at a fixed rate. Compensationis completed when a value is set to 1.0. You can set
the value to each temperature points up to 3.5.
Reduction value of compensation is set in the lower
side of compensation window.
time to recovery
temperature at

reduction value

There is swicth in right side of window.
When you click an upper switch, a reduction value
increases. Thereby, the time to the completion of compensation becomes short. Conversely, if alower switch is clicked, the time to a compensation end will become long. Graph expresses thecompensation end time in display temperature and R.P.M.

fi system Manual ver.4.6.0
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2-23

Start up injection time
This is not a compensation value. It is injection time
which will be injected in a period until it becomes arotation speed stable. It is not based on the angle ofthrottle, and rotation speed, but fixed injection time isset up for every point of each temperature. Since
evaporation of fuel runs short when engine
temperature is low, injection time is increased.

Asynchronous injection time
Asynchronous injection is the function to perform
compensation injection, when change of the intake air
volume rapidly between the timings of synchronous
injection. Asynchronous injection time is set up to thepoint of the amount of open angle change of throttle .

Fuel Cut Control
In engine rotation speed over idol speed, fuelinjection is stopped at idle throttle position. Usually, it
carries out from a rotation speed somewhat higher
than idol rotation speed. Since it is easy to carry out astole when engine has got cold, a higher rotation
speed is specified. In a right figure, for example,at theengine temperature of 70 degrees C or more, when athrottle is an idol position in 3500r.p.m or more, fuelinjection is stopped. In 23degree C,Injection is not
stopped lower than 8000r.p.m.
This functions also as an idol R.P.M. limiter.

fi system Manual ver.4.6.0
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2-24

Accelerate Compensation ( for *D-Jetronic only )This function correct a gap of the air / fuel ratio by thefollowing reasons.
a) Response delay of intake pressure sensor.
b) The difference in the fuel evaporation by theintake pressure at the time of acceleration ora slowdown. (Throttle open or close)

When Throttle changes in the direction it opens, thevolume of fuel is increased. Because engine ischanging in the direction whose intakeair volume
increases and the value of a sensor is following
behind time. Conversely, fuel is decreased when athrottle changes in the direction which it closes.
Because intake air volume is changing in the direction
decreasing and the value of a pressure sensor follows
later than it. In this compensation, when a throttle
changes, a value is set, and a value is increased or
decreased gradually. Compensation will be ended if avalue is set to 1.0.

time to recovery

recovery time from“2” at 2000r.p.m.

sec

You can set up the value to 0 to 5 times to the pointof the throttle change speed of arbitrary accelerationor the slowdown direction.
The value to increase, or the value to reduce is set
up in a lower window. It sets up with this button. If an
upper button is clicked, it will come to return early,
and if a lower button is clicked, it will come to returnslowly.
It differs from the asynchronous injection which
performs compensation injection temporarily that thevolume of synchronous injection is increased or
decreased between a certain set-up cycles.

*“D-Jetronic” is the registered trademark of Bosh AG

fi system Manual ver.4.6.0
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2-25

Boost Compensation ( for TB version only )This function corrects the injection time according to
the intake manifold pressure (positive pressure).
Only the version for the supercharged model,thisfunction is effective .

* When the pressure sensor is used for the airpressure, it is also possible to use this function for theatmospheric pressure correction.
* The optional pressure sensor is necessary to use
this function.

fi system Manual ver.4.6.0
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2-25a

( m ) Transmit Settings to ECU

Please transmit data to ECU after editing the setting.
Before transmits setting, We will recommend theedited data to be saved.
Please confirm the connection with ECU. Pleaseconfirm ECU is turning on.
Please click "PC >> ECU" button.
When the setting of ECU is not read to PC before
transmitting, "Send All data?" message is displayed.
Please click "OK" button.
if the window of "COM PORT" opens, please set up aport number and click the "O.K." button.
Since SWB displays an error message when thewrong port number is set up, please click a[ECU>>PC] button again after clicking [Tool] >[Option] of a menu bar and clicking the right numberof the ”COM PORT“ and the ”O.K.“ button. After that,please click [ECU>>PC] button again.
A mouse icon becomes a sandglass display duringtransmission, and SWB cannot be operated in themeantime.

Connect “Communication Cable”[ PC >> ECU ] button

When the message of the completion is displayed
after transmission is completed, please click the"O.K." button.
When the IG switch is turned off, ECU maintains thepower supply from the backup power supply line
while writing the setting to EEPROM ( One second orless ) and ECU is turned off.
“COM PORT” Window

NOTE: When the edited setting is transmitted after the setting is read from ECU, only the change
NOTE: When the edited setting is transmitted after the setting is read from ECU, only the changepart is transmitted. The transmission is completed at time that is shorter to transmit all the settings.
part is transmitted. The transmission is completed at time that is shorter to transmit all the settings.

fi system Manual ver.4.6.0
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2-26

(n) Data Monitoring Window

Among the control parameters in ECU, the following
information can be displayed on the screen of PC byusing the communication. Open rate of throttle,
temperature of engine, value of dial controller, androtational speed of engine, voltage of battery, andinjection time

starting “Data monitor”

Please connect ECU with the PC with thecommunication cable.
Next, please operate “download from ECU” referringto the chapter of " Read Settings from ECU".
When the reception is completed, please click "Tool">> "Data Monitor" of the menubar. The data monitor
window is displayed.
When "Start" button is clicked, it starts displaying.
The raw data of the sensor is displayed in the left,
and the converted physical quantity is displayed in theright. An open rate of the throttle is converted into an
open aria rate of throttle boa. The open rate of thethrottle used in the basic injection map is this open
area rate.
In throttle open rate and engine temperature, PC
converts into a physical numerical value when theengine speed is zero, and displays them by a red
character. When the engine starts rotating, the value
in which the conversion calculation is done with ECU
is displayed in blue.

Data Monitor Window

Click “Start” button to display.

[ For the D-Jetro version ][ For the D-Jetro version ]"intake manifold pressure" is added"intake manifold pressure" is added
to the display item. Only after theto the display item. Only after theengine starts, PC displays pressureengine starts, PC displays pressure
value. Before starting,the value isvalue. Before starting,the value isdisplayed by a red character as
displayed by a red character as"760".
"760".

* Even if the dial controller's setting is "diabled", the numerical value displays the value of the dial.
* After engine starting, some parameters are displayed in red charactor.

fi system Manual ver.4.6.0
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2-27

Other operations of SWB cannot be done while
receiving the timer.
A right graph displays the position of referred map.
The graph can be cleared with the button of "Graph
Clear".
After the "communication" is stopped by "stop"button,
the window can be shut with the "Close" button.
* D-Jetro version“Aria Percentage” is changed “Manifold Pressure” .

Monitor Cycle Change Button
A new function was added to "Setting
Workbench" ver.1.11.08.
(1) Display "Total Compansation" rate.
(2) Display "ECU Error" status.
(3) Shortening at monitor cycle
Formare version about 0.5 sec.
New version 0.2sec.
(4) You can change monitor cycle.
[ 0.1sec to 2sec ]Total Compensation Value.
E.C.U Error Display.

fi system Manual ver.4.6.0
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2-28

(n') Show A/F data on Data Monitoring Window

A/F sensor type

Settingchange of AF
color
classification

The A/F sensor that can be displayed is as follows.
NTK ････ NGK/NTK UEGO sensor
LM-2 ････ GRID(INNOVATE) LM-2
LX-2 ････ GRID(INNOVATE) LX-2
LM-1 ････ GRID(INNOVATE) LM-1
AF-X ････ NGK(USA) AF-X
It is necessary to connect the analog data output of each sensor indicator (or amplifier) with
the Fi harness.
Data is plotted in a right side graph by a round sign of the color according to the value of theair/fuel ratio.
The graph is displayed by R.P.M. vs. Throttle OpenRate(manifold pressure in case of DJ).
Please push the edit button that exists under the color
index when you change the boundary of the classification.
Attention
When the boundary is changed, the plot point displaying
it now is cleared.

fi system Manual ver.4.6.0
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2-28a(3) Configure and sensor ajustment

Before use,it is necessary to do “Hardware Configuration” and “Map Adjustment” after ECU isinstalled to the vehicle. These settings are usually set when “FC design” ships it.However, the thingthat shifts by engine vibration the idle adjusting etc. is expected. This chapter explains theseadjusting methods.
The set item.
As a hardware configuration.
(a) Setting of close values and full open value of throttle sensor.
(b) Setting of the Idle throttle threshold.
As an adjustment of the map(c) Adjustment by capacity of injector and displacement of engine.

(a) Setting of close values and full open value of throttle sensor.
ECU must convert from the voltage of the throttle sensor into an open rate of the throttle and referto the jet map.
The setting to which open rate the voltage of the sensor hits changes according to the installation
position of the sensor and the operation angle of the throttle valve.
It has usually adjusted it in "FC design" before ECU is shipped. However, it is likely to shift theoverhaul of the throttle body or caused by loosening of the installation by the vibration under use.
We will explain the method of adjusting this value here.

(i) Read Full Open Value
At first, please operate starting “Datamonitor”( refer to “Data Monitor Window” chapter).
Open the throttle to the wide(full open) limit. whenclick "Start" button, the communication begins.
Afterwards, please read the value of the throttle
sensor (value of 0-255).
If the value is 255 ,please loosen the sensor
installation screw of the throttle body, and adjust to
become a value that is smaller than 254 while
seeing the sensor value of Datamonitor.

Please read this value.
(digit)Data Monitor Window

fi system Manual ver.4.6.0
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3-1

(ii) Read Full Close ValueIn the same way, please read the value at full close
position. At this time, please rotate the idol adjustment
screw until becoming a position in which not the idol
position but the throttle is completely closed. Please
read the value at the position in which the throttle iscompletely closed.
(iii) Set Value to PC
Next, please set the sensor value to ECU ,according
to the following methods.
Please return to the main window, and click "Tool” >>"Hardware configuration" of the menu. opens. Whenthe message is displayed, click "Continuation" button,
please.
"ECU Configuration" window The value is set to theframe of "Throttle body" on the left top of the window.
Please input the sensor value of full open throttle tothe box of "Sensor value of full open".
When the button of "Manual" in the right of the box , "Sensor value of close" is clicked, the input
window opens. Please input the sensor value of full close throttle here, and click the “OK” button.
when the message of "Value is incorrect" is displayed ,the input value may be wrong, please try
again from the step,“the full open value”.
The input of “Throttle Diameter” is arbitrary. Please use it as a memo of the setting(Map).
(iv) Transmit to ECU
Please confirm the connection of the communications cable, confirm the power supply of ECU
is turning on, and click the "PC>>ECU" button.
The mouse icon becomes an “hourglass” display while transmitting, and, meanwhile, SWB
cannot be operated. It takes about ten seconds to transmit.
The message of "Complete" is displayed when the transmission is completed and click the "OK"button, please.
The power supply is turned off. ECU maintains the power supply while writing the setting, andthe power supply cuts afterwards.

fi system Manual ver.4.6.0
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3-2

(b) Setting of the Idle throttle threshold.
When throttle position is lower than [ Idle Throttle position ], the system cuts the fuel if the rotatinal
speed is more than R.P.M. in [ Fuel cut control ] setting value. This function is "Fuel stop when
decelerating". For this function, it is necessary to judge the idle position.
First of all, please read the value of the throttle sensor at the idle position by using [ Data monitor ].
Next, please set the value to the input box in [ ECU Configuration ] window shown in figure.
Please input a value that is a little larger than the read value. (about 1% or less.)
Please transmit to PC when the edit is completed.
(Please refer to the previous section. )Please read this value.
(%)

Data Monitor Window

Please input the value
and click [Done] button.

[ ECU Configuration ] window
fi system Manual ver.4.6.0
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3-3

(c) Adjustment by capacity of injector and displacement of engine.
The injector capacity is recorded in ECU. An injection setup needs to be adjusted, when
the injector capacity of your throttle body differs from this, and when the engine
displacement volume of the injection control map currently recorded differs from that ofyour vehicles. The whole injection map is multiplied by the numerical value which is
calcurated by the following formulas.
Please refer to "Start up manual" - Specification of your “ECU” map .
Injector CapacitySpec

cc/min *3
Displacement

cc *2

Value A = Injector Capacity in “ECU” *3 / Injector Capacity of Your Throttle Body *1
Value B = Your Engine Displacement / Displacement of “ECU” map spec.*2
Value ( for multiply ) = ValueA X Value B
How to multiply the whole injection map and the value is explained in the chapter of “Edit
Basic Injection Time Settings” - “(B) Multiplying “Gain”” in the manual.
* It is convenient to use the import export function to change to the setting matched to theengine displacement and the capacity of the injector. (see section 3-5.)* *NOTE.
NOTE.
You learn the fuel injection time in the calculation by calculating thefollowing formulas.
You learn the fuel injection time in the calculation by calculating thefollowing formulas.

Injection
InjectionTime(WOT)
Time(WOT)[sec][sec]==
aircharging
efficiency[%]/100
air charging efficiency [%]/100* *engine
enginedisplacement
displacement[cc][cc]* *air
airdensity
density/ /AFAFratioratio/ /fuelfueldensity
density/ /( (injector
injectorcapacity
capacity[cc/min][cc/min]/ /6060) )PleaseBasic Control Method ] in this manual.
Pleaserefer
refertoto1-4
1-4[ [About
About Basic Control Method ] in this manual.

fi system Manual ver.4.6.0
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3-4

Export & Import function （About the copy of the map between two ECU）
Because the configuration file contains information on individual hardware, the configuration filecannot be forwarded directly between ECU with a different serial number.
The injection time is not corrected by the difference between injector capacity and the engine
displacement even if it copies it directly.
The "export & import" is a function to correct an individual difference.
How to "Export".
(1) Please click "File" >> "Setting export" of the menu of the SWB software. Please input thememo arbitrarily.
(2) Next, please input the engine displacement. The input of this item is indispensable.
(3) Please input the file name on the following screen. Please click "SAVE".
- The extension of the export file is ".sip".
The compensation table and Injection time settings, system information (serial number andsensor proofreading value, etc.) are written in a usual configuration file, ".swp".
The injector capacity, the engine displacement(cc), the injection time settings, and thecompensation tablers are written in the export file, ".sip".
This file enables a setting exchange with other ECU.
- The setting of the pump drive is not included in the export file.
How to "Import".
(1) First of all, please read the setting from ECU. (Or, read from the file. )(2) Please click "File" >> "Setting import" of the menu.
(3) Please select the file of extension ".sip" that to import it in the selection screen of the file.
(4) Please confirm the content, and enter the next step. Please click the button of "Another file"when you choose another file. Please click "Cancel" when you discontinue import.
(5) Please click the button of "Adjust " when you want to adjust the jet time automatically.
Please click "Not Adjust" when reading without adjusting it. The file is read when "Not Adjust" isclicked and "Setting import" completes.
(6) When you click "Adjust it"
You can select which to be adjusted in three adjustment injection time. Please click "Adjust"after select them. Please click the "Cancel" button when you discontinue import.
(7) Please input the engine displacement of the engine under use and click "OK".
- The injection time is adjusted in proportion to the engine displacement(cc).
- The injection time is adjusted in inverse proportion to the injector capacity (cc/min).
(8) "Setting import" is completed.

fi system Manual ver.4.6.0
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3-5

(B) Appendix

specifications of ECU
Product Number
TargetFI-00
4Cycle engine, single silinder

Rated voltage
Range of voltage
Range of temperature
Current consumption
Max R.P.M.
Output12V
10～14V
0 to 70 degree Celsius
0.2A（MAX) at 12V
16000r.p.m.
1 injector driver
1 Pump driver
Throttle sensor,Temperature sensor
Revolutional pulse
Throttle-Speed method (Alpha - N)
or Speed Dencity method (option)
3 compensations
1 Asynchronous injection
1 Dial (gain) control

Input
Basic Injection
CntrolCompensations

Pump Control
Setting method

Communication
Interfacesize
AppendedIntermitant and PWM drive.
(Changing by R.P.M.)
Changing from PC.
( The setting softwear, " Setting
Workbench for Windows "is required. )-2cycle,RE are alsoavailable.

Note *1

Note *2

Note*3
Max.31 X 31 points
Range 0 to 32 msec
Boost Comp. isType TB(option)*4

RS232C(W)×(H)×(L)(g)
1 Dial controller, 1 temperature sensor,
1 pulse unit (signal interface unit), 1 CDROM for install "Setting Workbench"
softwear, 1 Instruction manual, 1
Comunication cable

NOTE.
*1 Don't install ECU by the exhaust tube.(High Temperature)*2 The one injector driver can drive 2 injector at same timing.
*3 The revolutional pulse is output from the " signal interface unit".
*4 We do not guarantee the following matters. Please acknowledge it.
(i) Problem of this software operation by installing other software.
(ii) Problem of movement of other software by installing this software.

fi system Manual ver.4.6.0
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B-1

Wiring diagram(alpha-N,Throttle-Speed type)fi system Manual ver.4.6.0
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Wiring Diagram ( D-Jetro ~ Speed Density / alpha-N + Boost Sensor )fi system Manual ver.4.6.0
Copyright (C) fc design co.,ltd. / http://www.fc-design.com/

Connector Diagram

fi system Manual ver.4.6.0
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““FIFI““ Electronic
Electronic
Fuel
Injection
Fuel InjectionSystem
SystemInstruction
ManualInstruction Manual

2007/06
2007/06ver.
ver.4.4
4.4release
release2010/12ver.
4.6
release2010/12 ver. 4.6 release
FC
FCdesign
designco.,ltd.
co.,ltd.
2-1-48,
Fuchuchou-Honmachi,Aki-gun
2-1-48, Fuchuchou-Honmachi,Aki-gun
Hiroshima,Japan
Hiroshima,Japan
735-0006
735-0006
Tel：81-82-287-0211
Tel：81-82-287-0211
Fax：81-82-287-0212
Fax：81-82-287-0212
Mail：info@fc-design.com
Mail：info@fc-design.com
Copyright
Copyright(C)(C)fc-design
fc-designco.,ltd.
co.,ltd.

fi system Manual ver.4.6.0
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