Manual

About Installation and Operation(for customer and installation personnel)

Racer Gauge N2 Φ52mm (2 1/16”) / 60mm (2 3/8”)
SI series: DF16001〜DF17101, DF16003〜DF17103
USDM series: DF16002〜DF16502

SI series/USDM series

RGN2-E: 19.10-2

IMPORTANTWEAR
SAFETY GLASSES

Thank you very much for purchasing our product.
This product is an additional product for providing information to automobile users about engine
conditions and other important factors. Before installing and using the product, please read this manualand the warranty card thoroughly. All sections are for customers and installation personnels. Afterinstallation, please keep this manual and the warranty card for future reference. In the event that thisproduct (or the vehicle in which it is installed) is lent to or transferred to another person, please be sure
this operation manual and warranty card accompany the product.
Deﬁ will not be held responsible for accidents or damages related to installation of this product.
When installing and operating this product, be sure to read the cautionary items in the operation manual
for the vehicle in which this product will be installed in addition to the manual of this product. Pleaseobtain a full understanding of the cautionary items and use the product accordingly. Before using the
product, please conﬁrm all the components are included in the package.

Safety Warning 【Please read carefully.】

In this manual, the degree of hazard arising from actions such as improper operation is separated into the
3 levels "Danger," "Warning," and "Caution." In addition, instructions that must be followed for safe andproper use of this product as well as practices that must be maintained are marked with a "Conﬁrmation"
heading. Please read and become familiar with these sections.

DangerIndicates the imminent dangerous situation of death or serious injury if the product ismishandled.

Warning

Indicates the possibility of death or serious injury if the product is mishandled.

CautionIndicates a conceivable source of personal injury or damage to equipment if the
product is improperly operated.

Conﬁrmation Indicates an instruction that must be performed or practice that must be maintained.
Properties for safety warning

Indicates attention needs to be paid. (Including warnings)

ProhibitedMust

Indicates restricted actions. (PROHIBITED actions)Indicates actions that need to be carried out. (MUST actions)

Before handling (for installation personnel)
DangerDo not install the product at the wet places. It may result in a ﬁre caused by an electrical short circuit.
Ensure that the vehicle will remain stationary and turn oﬀ the engine before installing this product. Failure to do so
could result in a ﬁre, and could make the vehicle move during installation.
Remove the key from the ignition and disconnect the negative (-) battery terminal prior to installation of thisproduct. Failure to do so could result in a ﬁre caused by an electrical short circuit.
Take care not to install this product in a way that interferes with safety equipment such as seat belts and air bag
systems or vehicle operation equipment such as engine controls, steering wheel or brake systems. Interferencewith normal operation of the vehicle can result in an accident or ﬁre.
Solder or use a solderless connector for wiring connections and make sure connections are insulated. In areas
where there could be tension or sudden impacts on the wiring, safeguard the wiring with corrugated tubing orother shock absorbent material. Accidental shorts can cause ﬁres.
When wiring power supply wire, to avoid the risk of electrical shock or ﬁre, be sure to conﬁrm that there is no
disconnection or breakage of wire. Poor connection can result in short-circuit, electrical shock, ﬁre, or other hazards.
Discontinue use of this product if a blowout of the fuse has occurred. Continued use while the condition exists
could result in an accident, ﬁre, or damage to the vehicle.
Use a fuse of regulated capacity when the fuse of the power wire is changed. Using a fuse that exceeds regulated
capacity may cause ﬁre and aﬀect the accuracy.
Discontinue use of this product if the product doesn't operate or operates improperly. Continued use while thecondition exists could result in an accident or ﬁre.

Warning

Do not disassemble or modify this product. Such actions will not only void the warranty but also
damage or destroy the product.
Do not perform installation of this product immediately after the engine has been switched oﬀ. The
engine and exhaust system are extremely hot at this time and can cause burns if touched.
Do not cut more than one wire at the same time when cutting wires. Cutting several wires together
may destroy your ECU, ignition system and other engine management devices.
disassemble/
Do not install this product in the area where safety equipment such as airbags are mounted. This
modifymay cause more injuries in the event of an accident.
Carefully consider the installation location and driver's operation of the product before installation. Do not install thisproduct where it interrupts driving and the safety deices of vehicle such as the airbag system.
Be sure not to install this product where it could fall. Improper installation or operation could cause the product tofall and damage the vehicle or cause serious danger by impeding driving.
Ensure that the wiring of this product does not have an adverse impact on the other wiring of the vehicle. Any
controlling devices or other electronic components of the vehicle could be damaged.
Keep children and infants away from the installation area. Children may swallow small parts or be injured in other ways.

Caution

Do not drop any of the components of this product. It may result in damage to the product.
Do not apply excessive force on switches/terminals. It may result in damage to the product.
Do not use wires other than the provided wires.
Do not place wires near the engine, exhaust pipe or turbine. It may result in damage or fusion of wires.
Do not share single fuse with multiple gauges. Every gauge requires independent fuse for IGN and
24V+B line.
Do not pull the wires out of connectors forcefully. The connectors may be broken and the wires
may be cut. When pulling out the wires, press the lock ﬁrmly and unclip the locks of connectors.
Do not install gauges into the passenger side or center of the dashboard. It doesn't meetvehicle safety standards.
Do not attach wires on the body of the vehicle or engine parts as this may result in damage to the product.
Install wires away from ignition and also radio signal frequency interference as this could cause the gauges to malfunction.
This product is designed for use on 12V vehicles. Do not install this product on vehicles with 24V systems.
Insulate any unused wires. If any wires or connectors loosen during installation, please make sure they are correctly reattached.
Make sure the waterproof processing is done when diverging wires in the engine compartment.
When installing the sensor, do not bend the wire near the sensor body.
Wear gloves to avoid burns when soldering and cuts when installing wires, sharp edges of parts.
Install sensors away from hot or wet places.
When using sunshade, put sunshade between products and windshield to avoid direct sun exposure .
Use a dry, soft cloth for cleanup. Do not use cleaners except for neutral detergent. It may damage the product.

Conﬁrmation

Over 90°
Do not lay the gauge face down due to oil leakage. Angle "A" must be more than 90 degrees.
Be sure to follow all instructions in this manual to ensure safe installation and operation of the product.
After installation is complete, return this operation manual, warranty card, and the package to the A
customer along with the warranty.
Conﬁrm with the car maintenance manual issued by the manufacturer when installing and detaching genuine parts.
Before tapping wires, check the voltage of the existing wire. After tapping the wire, check the voltage of the tappedwire again to conﬁrm whether you have tapped into the proper place.
If car navigation system or car television is installed in vehicle, gauges and wires of this product need to be kept as
far away as possible from the wiring and installing positions of car navigation system or car television. Failure to doso may result in interference of television display.
When the negative (-) battery terminal is disconnected, equipment such as clocks and audio components having
internal memory may lose their memory data. Follow the operation manual of each component to reset data after
installation of this product.
The gauge pointer may not be in the proper position when you purchase the product. Normal function will resume
when power is connected.
On no event will Nippon Seiki Co., Ltd. be liable to you for any damages or losses of genuine parts for your vehicle
while installing.

Warning

Do not disassemble or modify this product. Such actions will not only void the warranty but also damage or destroy the product.
Do not operate during driving.
Discontinue use of this product if the gauge doesn't operate, water gets into the unit, or smoke or a strange odor
comes from the unit. If such a condition occurs, contact the sales outlet or installation personnel as soon as
possible. Continued use while the condition exists could result in an accident or ﬁre.
Please have this product installed by a retail store or dealer where it was purchased. Installation by the customer
will void the warranty.
In order to ensure safe driving, check the information on the gauge only for short periods of time. Looking at thedisplay for long periods of time could distract adequate attention from the road and result in an accident.
Fix the switch unit and other parts tightly to the vehicle to avoid that children swallow those.

Caution

Do not pull the wires out of connectors forcefully. The connectors may be broken and the wires may becut. When pulling out the wires, press the lock ﬁrmly and unclip the locks of connectors.
On no event will Nippon Seiki Co., Ltd. be liable to you for any damages arising out of
the use or inability to use the product, even if Nippon Seiki Co., Ltd. has been advised ofthe possibility of such damage.

Conﬁrmation

This product cannot be linked to either the ADVANCE System or the Deﬁ-Link System.
The information displayed on this product are for reference purposes only. Please drive according to the indicationof vehicle's originally equipped instruments.
Please check the installed product regularly. Durability might deteriorate according to use conditions, etc.
Dispose of the product according to the local recycling regulations.
This product uses high luminance LEDs. When several gauges are lined up, there might be color diﬀerence in the
LED production tolerance, but it is not malfunction.
In the case of idling stop vehicles, the power of the product is turned oﬀ and restarted in some cases by a drop inbattery voltage when the engine is restarted while idling stop function is active. It is not malfunction.

Lineup (for customer)

SI models: White illumination (Sold globally except the USA)

Φ52mm
Φ60mm
Φ80mm
Product Name
Display Range Blue ring Red ring Blue ring Red ring Blue ring Red ring
-100kPa〜+200kPa DF16001 DF16003 DF16601 DF16603
ーー
TURBO 2.0-100kPa〜+300kPa DF16101 DF16103 DF16701 DF16703
ーー
TURBO 3.0
0〜1000kPa
ーー
PRESS.
DF16201 DF16203 DF16801 DF16803
30〜150℃
ーー
TEMP.
DF16301 DF16303 DF16901 DF16903
200〜1100℃ーー
E.G.T.
DF16401 DF16403 DF17001 DF17003
10〜15Vーー
VOLT
DF16501 DF16503 DF17101 DF17103
0〜9000rpm
DF17201 DF17203
ーーーー
Tachometer 9000rpm
DF17301 DF17303
ーーーー
Tachometer 11000rpm 0〜11000rpm

USDM models: Red illumination (Sold only in the USA)
Product Name
BOOST 30PSI
BOOST 45PSIPRESS.
TEMP.
E.G.T.
VOLT
Tachometer 9000rpm
Tachometer 11000rpm

Φ2 1/16”
DF16002
DF16102
DF16202
DF16302
DF16402
DF16502
ーー

Display Range-30inHg〜30PSI-30inHg〜45PSI
0〜140PSI
100〜300°
F
400〜2000°
F
10〜15V
0〜9000rpm
0〜11000rpm

Φ2 3/8”
ー
ー
ー
ー
ー
ー
ー
ー

Φ3 1/8”ーーーーーー
DF17202
DF17302

Main Features (for customer)■How to attach Mounting bracket set1) Cut the double sided tape as shown in ﬁgure 1.
2) Insert convex part of the mounting bracket over the legs of the meter cup. Attach the mounting bracket
to the meter cup with the bolt, nut, and washer included in the kit as shown in ﬁgure 2.
3) Attach one piece of double sided tape and the buﬀer on the gauge as shown in ﬁgure 3. (Cut the buﬀer
into suitable length when installing Φ 52(2 1/16”) series.)
4) Pass the power supply wire and the sensor wire through the hole of the meter cup and connect themto the gauge.
5) Place the gauge in the meter cup making sure that the wires are not sandwiched.
6) Attach double sided tape on the back of the mounting bracket as shown in ﬁgure 4. Bend themounting bracket to conform to the structure of the location where you intend to attach it.
7) Fix the mounting bracket with commercial tapping screws as shown in ﬁgure 5.

Product Speciﬁcations（for customer and installation personnel）■Power-supply voltage 10V to 15V DC (12V vehicles only)■Current consumption +B line: MAX 120mA (Dark current 0mA)
IGN line: MAX 120mA
ILM line: MAX 2mA■Temperature range (humidity is assumed to be 80% or lower) Unit: °C(°F)
Temperature range for storage Temperature range for operation
Gauge-30（-22）~ +80(176)-20(-4) ~ +60(140)
Boost sensor-30（-22）~ +100(212)-30（-22）~ +80(176)Pressure sensor-30（-22）~ +140(284)-30（-22）~ +120(248)Temperature sensor-30（-22）~ +150(302)-20（-4）~ +150(302)
Exhaust temperature sensor -30（-22）~ +130(266)-30（-22）~ +130(266)※The upper temperature limit of sensor connectors is 105℃（221°F）.
※The sensing part of exhaust temp. sensor is not included in the temperature range above.
■Dial color
Black (invisible until the ignition is turned on)■Illumination color
SI models: white
USDM models: red※The color cannot be switched.
■Dimensions
See reverse side.

Installation（for customer and installation personnel）■How to wire the power supply wire1) Disconnect negative ( - ) battery cable.
2) Connect the power supply wire as shown below.
3) Connect each sensor. Refer to "How to attach sensor" sections. (Except the Volt gauge)4) Connect the sensor wire.
5) Reconnect negative ( - ) battery cable.
Sensor wireSensorOrange wire：IGN (Ignition)
To 12V wire while ignition is on
Power supply wire

Fuse +B 0.3A
IGN 0.3A

Conﬁrmation

Red wire：+B (12V Battery)
To 12V battery wire

White wire：+ILM (Illumination)
To 12V wire while instrument panel lights are on
Black wire：GND (Ground)To ground or negative battery terminal

When several gauges are installed into a vehicle, use each power supply wire to connect gauges tothe vehicle independently. Do not join multiple power supply wires. Do not share single fuse withmultiple gauges. Every gauge requires independent fuse for IGN and +B lines.

■Components
Red
3pins

Gauge 1pc

Pressure sensor(1/8PT) 1pc

Conﬁrmation【ﬁgure 1】【ﬁgure 2】【ﬁgure 3】

Meter cup 1pc

Buﬀer

Sensor wire (2.5m, 8 1/5ft)
1pc

Power supply wire
(1m, 3 1/3ft) 1pc

Mounting bracket set

Do not lay the gauge face down due to oil leakage. Angle "A" must be more than 90 degrees.
Over 90°
Use appropriate dashboard cleaning liquids (commercially available) to clean the areaA
where the double sided tape will be attached.
Use commercial tapping screws with double sided tapes to ﬁx gauges on dashboard.

Double sided
tape (large) 1pc

Buﬀer
1pc

Mounting
bracket 1pc

M4 bolt, nut,
washer 1pc

Operation manual (this sheet) and warranty card are included other than the parts listed above. Keep them at hand.

Bolt【ﬁgure 4】
Mounting bracket(rear side)■How to attach pressure sensor for oil pressure (Use a commercial sensor attachment.)

Doublesided tape

WasherNut

Detach the original
element.

【ﬁgure 5】

Attaching positionof buﬀer

Use commercially available tapping screws.

TURBO/BOOST (DF160, 161, 166, 167 series)

EngineGauge 1pc

→ To sensor wireSensorWarningLight blue
3pins

Boost sensor 1pc

Wind Teﬂon tape.
Be sure not to twist.

Thread size 1/8PT
O ring(provided with commercial parts)■Components
Sensor color
Turbo 3.0 &Boost 45PSI: gray
Other models: black

Use a commercial
conversion adapter in casethe inlet of the sensor
attachment is 1/8NPT.

Sensor attachment(commercially available)

Holes for screws(Φ4.4mm)

Sensor wire (2.5ｍ, 8 1/5ft)
1pc

Power supply wire
(1m, 3 1/3ft) 1pc

Mounting bracket set

EngineDo not install the sensor near oil pump. Do not install the sensor to pressure switch directly. Failure to do so could
damage the sensor because the pressure pulsation is too big and exceed three times full-scale momentarily.
Be sure the sensor wire is not twisted when installing the sensor. The sensor wire will be cut.
Oil spills by the installation work. Please replenish the engine with oil. The engine might overheat
when oil is too little.
To avoid oil leaks by installing of the sensors, use Teﬂon tape. Before driving, inspect oil blocks forleaks. Leaks could cause a ﬁre or damage the engine.
To avoid the damage of the sensor wire, please ﬁx the waterproof connector on the vehicle body anddo not bend the sensor wire near the sensor.

Conﬁrmation

Double sided
tape (large) 1pc

Meter cup 1pc■Stepping motor "STEP MASTER VS-2" provides smooth operation.
■Full 270°sweep dial provides ultimate visibility.
■Ignition ON initiates self-luminescence gauge.
■Illumination using high-brightness LEDs
■Lightning-like opening / ending ceremony■A mounting bracket and instrument case is provided with the product.
■Self-diagnostic function monitors both sensor disconnection and short-circuiting during opening ceremony.
a) Sensor disconnection check
This function reports any in-proper connections, broken or disconnected
sensor or sensor wire. The pointer will wave between 250 and 260 degrees.
b) Short-circuiting check
This function indicates any short circuit on the sensor or sensor wire.
(b)(a)
The pointer will wave between 10 and 20 degrees.

PRESS. (DF162, 168 series)

Buﬀer
1pc

Mounting
bracket 1pc

M4 bolt, nut,
washer 1pc

Attachment parts for models other than Turbo 3.0 / Boost 45PSI
A rubber hose and a three-way joint are not included in
For inside diameter
InsideTurbo3.0/Boost 45PSI. A rubber hose which has more
Φ4mm x 3
diameterthan withstanding pressure of 400kPa (inner diameter
Φ4mmΦ4mm) and a three-way joint which can match both
the rubber hose and the vacuum hose size are required.
Do not use the rubber hose included in models other thanThree way joint
Rubber hose 0.5m
Turbo 3.0/Boost 45PSI when installing Turbo 3.0/Boost 45PSI
1pc(1 3/5ft) 1pc
because it cannot withstand high pressure more than 200kPa.
Operation manual (this sheet) and warranty card are included other than the parts listed above. Keep them at hand.

■How to attach boost sensor (e.g. for gasoline vehicle)
Attach with clamps.
(commercially available)

Use a commercial rubber hose
and a commercial three-way joint
for installation of Turbo 3.0 /Boost 45PSI

(c)

(a)

Surge tank

Fuel regulator

SensorBe sure to install facing the air holeside down.

Rubber hose

To sensor wire1) The rubber hose attached to the sensor should be as short as possible. Attach the sensor with bolts(M6) in the engine compartment in an area where it will not be subject to excess heat or vibration.
2) Access to the air pressure intake may be obtained between the surge tank and the fuel regulator.
(A)Detach the vacuum hose from the surge tank side that has less pressure oscillations and connect
it to the point (a) or (b) of the three way joint.
(B)In order to connect the surge tank with three way joint, cut the required length of the hose fromthe included rubber hose.
(C)Use the remaining rubber hose to connect the sensor to the three way joint.

Warning

Be sure to use commercial hoses which can withstand more than 400kPa for installation of Turbo 3.0 / Boost
45PSI Failure to do so could cause serious damage to the engine, such as engine blowout or hose burst.
To avoid disconnection of rubber hose and air leak, attach hose clamps or use tie-wraps to secure theadjacent hose in the engine compartment. Disconnected hose or air leak could cause damage to the engine.
In the case that the gauge does not indicate correct intake pressure, shut oﬀ the engine immediately and stopusing the product. Please recheck the wiring line. Air leaks or loose connections may happen, or theconnected location may be wrong.

Conﬁrmation■How to attach pressure sensor for fuel pressure (Use a commercial three-way joint and hose unions.)

Fuel pressure regulator

Use a commercial
conversion adapter in casethe inlet of the three-way
joint is 1/8NPT.
Wind Teﬂon tape.

Fuel return pipe
(low pressure)

The sensor must be installed being the rubber hose connection side faced down.
For vehicles which have a solenoid valve between the surge tank and the fuel pressure regulator,
place a three-way joint closer to the surge tank side than to the solenoid side.
Depending on vehicle types, there are some cases that this product cannot be installed to a vehicle.
Please ask retailers or distributors for details.
The included three-way joint can be used only for the piping inner diameter of Φ4mm between the surge
tank and fuel pressure regulator. In case of other than Φ4mm, use commercial joint that ﬁts properly.
Use the gray sensor for the Turbo 3.0 / Boost 45PSI gauge and the black sensor for 2.0/30PSI andunder turbo/boost/in-mani gauges for the normal operation.

Three-way joint(commercially available)

Cut the fuel feed pipe andinstall hose unions.
If the material used for the
inner surface of fuel feed pipe isresin, a hose union may not be
ﬁxed. Check the material before
cutting the fuel feed pipe.

Be sure not to twist.

Hose union(commerciallyavailable)

Three-way joint(b)

The thread size of the pressure sensor is 1/8PT. Use a sensor attachment of 1/8PT. If the thread sizeof the sensor attachment for the pressure sensor is 1/8NPT, use a conversion adapter available from
hardware stores.
Tighten the sensor into the sensor attachment and then connect it to the sensor wire.

SensorThread size 1/8PT

To sensor wire↑

Fix tightly with clamps.
(commercially available)

Fuel feed pipe (high pressure)

Warning

Be sure the sensor wire is not twisted when installing the sensor. The sensor wire will be cut.
Before cutting the fuel feed pipe, be certain to remove the gas cap to relieve any pressure built up in thefuel tank.
When cutting the fuel feed pipe, be certain to discharge static electricity. Otherwise, there is a possibilityof the ignition in gasoline.
Wear glasses to protect eyes when cutting the fuel ﬁlter pipe.
To avoid fuel leaks during installation of the sensor, use Teﬂon tape. Attach hose connection and fuelfeed tubing with clamps. Inspect pipes and hose connections for leaks before driving.
To avoid the damage of the sensor wire, please ﬁx the waterproof connector on the vehicle body anddo not bend the sensor wire near the sensor.

Conﬁrmation

The sensor must be installed on the feed (high pressure) pipe side between the fuel tank and the fuelpressure regulator. It is not possible to obtain accurate fuel pressure from the return (low pressure)side at the rear of the fuel pressure regulator.
The thread size of hose unions and the three-way joint need to be 1/8PT. Use hose unions and athree-way joint of 1/8PT. If the thread size of the three-way joint is 1/8NPT, use a conversion adapter
available from hardware stores.
Tighten the sensor into the sensor attachment and then connect it to the sensor wire.

TEMP. (DF163, 169 series)

E.G.T. (DF164, 170 series)■Components■Components

Repair Parts (for customer)
Item

Red
2pins

Gauge 1pc

Temperature sensor(1/8PT) 1pc

Power supply wire
(1m, 3 1/3ft) 1pc

Gauge 1pc

M4 bolt, nut,
washer 1pc

Fitting (1/8PT) 1pc

Exhaust temperature Sensor wire (2.5ｍ, 8 1/5ft)
sensor 1pc
1pc

Power supply wire
(1m, 3 1/3ft) 1pc

Mounting bracket set

Meter cup 1pc

Double sided
tape (large) 1pc

Buﬀer
1pc

Mounting
bracket 1pc

Operation manual (this sheet) and warranty card are included other than the parts listed above. Keep them at hand.

Meter cup 1pc

Optional Parts (for customer)

Mounting bracket set

Item■How to attach temperature sensor for oil temperature (Use a commercial sensor attachment.)
Detach the original element.

Sensor attachment(commercially available)
EngineDo not put the sensor in the side hole.
The depth of the hole for the sensor
must be more than 30mm (1.2”).

O ring(provided withcommercial parts)
Thread size 1/8PT

SensorWind Teﬂon tape.
Be sure not to twist.

Double sided
tape (large) 1pc

Buﬀer
1pc

Mounting
bracket 1pc

M4 bolt, nut,
washer 1pc■How to attach exhaust temperature sensor for exhaust temperature
Make a threaded screw
hole (1/8PT).
Fitting(a)BushingEngineBe sure the sensor wire is not twisted when installing the sensor. The sensor wire will be cut.
Oil spills by the installation work. Please replenish the engine with oil. The engine might overheat
when oil is too little.
To avoid oil leaks by installing of the sensors, use Teﬂon tape. Before driving, inspect oil blocks forleaks. Leaks could cause a ﬁre or damage the engine.
To avoid the damage of the sensor wire, please ﬁx the waterproof connector on the vehicle body anddo not bend the sensor wire near the sensor.

Conﬁrmation

The thread size of the temperature sensor is 1/8PT. Use a sensor attachment of 1/8PT. If the thread sizeof the sensor attachment for the temperature sensor is not 1/8PT, and you use a conversion adapter
available from hardware store, note that the temperature is displayed lower than the actual value.

The depth of the hole for the sensor must be more than 30mm (1.2”).

Tighten the sensor into the sensor attachment and then connect it to the sensor wire.
■How to attach temperature sensor for water temperature (Use a commercial sensor attachment.)
Cut the upper hose and connect thesensor attachment between hoses.

Radiator
Upper hoseFitting(b)Sensor wire
Thread size 1/8PT

1) Make a 1/8PT threaded screw hole in the exhaust manifold pipe. (Weld if the pipe wall thickness
is not enough）
2) Dismantle the ﬁtting. Do not crush the bushing inside the ﬁtting.
3) Tighten the ﬁtting(a) to the hole of the exhaust manifold.
4) Pierce the sensor through the ﬁtting(b) and the busing.
5) Insert the edge of the sensor into the ﬁtting(a) and position it at the center of the exhaust pipe.
6) Tighten the ﬁtting(b).
Warning

To avoid personal injury, do not install the exhaust temperature sensor while the engine is hot.
When making a hole, make sure no chip remains in the exhaust pipe or turbine. It may result indamage to the engine, exhaust pipe, or turbine.

Conﬁrmation

Attach tightly with clamps.
(commercially available)
Wind Teﬂon tape.
Thread size 1/8PT
Be sure not to twist.
Sensor

The thread size of the ﬁtting is 1/8PT. Make a threaded screw hole of 1/8PT.
Tighten the sensor into the sensor attachment and then connect it to the sensor wire.

VOLT (DF165, 171 series)■Components→To sensor wireConﬁrmation

The thread size of the temperature sensor is 1/8PT. Use a sensor attachment of 1/8PT. If the thread sizeof the sensor attachment for the temperature sensor is not 1/8PT, and you use a conversion adapter
available from hardware store, note that the temperature is displayed lower than the actual value.
Tighten the sensor into the sensor attachment and then connect it to the sensor wire.

Gauge 1pc

Power supply wire
(1m, 3 1/3ft) 1pc○A gauge lapses into thedisconnection check mode.
(Except VOLT gauge)○Disconnection of sensor or sensor wire ○Check the disconnection of connectors○Connector is unhooked.
and wires.
○Incorrect wiring

Possible Cause

Corrective Action○A gauge lapses into the shortcircuit check mode. (Except
VOLT gauge)○Sensor or sensor wire has a shortcircuit.
○Sensor or sensor wire is shorted to
the vehicle body.

○A gauge doesn't operate.

○Fuse on the power supply wire isblown out.

○Look for the point of short circuit withthe following procedures.
【Step 1】Unplug the sensor from sensor wire.
<1> The gauge lapses into thedisconnection check mode.
→Short circuit of the sensor.
<2> The short circuit check mode
continues. →Go to【Step 2】【Step 2】Unplug the sensor wire from the gauge.
<1> The gauge lapses into thedisconnection check mode.
→ Sensor wire has a short circuit.
○Check the wiring.
○Do not share single fuse with multiple
gauges. Every gauge requires
independent fuse for IGN and +B line.

○A gauge doesn't perform theopening mode.

○Wiring of IGN wire or GND wire of○Check the wiring.
the power supply wire to the vehicle
is wrong.
○Fuse on the IGN wire of the power○Replace the fuse of the power supply
supply wire is blown out.
wire.

○A gauge doesn't perform theclosing mode.

○Wiring of constant battery+ wire of ○Check the wiring.
the power supply wire to the vehicle
is wrong.
○Fuse on the constant battery+ wire of ○Replace the fuse of the power supply
wire.
the power supply wire is blown out.

○Dimmer is not working.

○Wiring of ILM wire of the power
supply wire to the vehicle is wrong.

○Malfunctioning operation○Wrong wiring of the power supply wire ○Check the wiring.

○Check the wiring.

■Warranty card・Terms and conditions

Meter cup 1pc

This product is delivered with this operation manual and a warranty card. Please read terms and conditions in thismanual thoroughly and keep the warranty card in a safe place. Failure to show this warranty will void the warranty.

Mounting bracket set■Warranty period

LIMITED PRODUCT WARRANTY AND LIMITED PRODUCT LIABILITY

A. Limited Warranty
a. Our sole obligation to you after the sale of a product is to replace, without charge, the product or any
component thereof discovered to bee defective within a period of one (1) year from the purchasingdate(the "Warranty Period"). You accept sole responsibility for the proper assembly operation andregular maintenance of the product. This limited warranty is void if any product is damaged by
accident, misuse, improper installation, or abuse, including tampering or damage in transit. Further,
this limited warranty is void if you sell or otherwise transfer a product to a third party, regardless ofwhether the transfer takes place within the Warranty Period.
b. Out liability to you resulting from the sale of any product, including liability for any latent defects
found within the Warranty Period, shall not exceed the total purchase price paid for the product byyou.
c. YOU UNDERSTAND AND AGREE THAT WE MAKE NO REPRESENTATIONS OR WARRANTIES OF ANY
KIND, EXPRESS OR IMPLIED AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITION OF THE
PRODUCT OR ANY COMPONENT PARTS THEREOF, ITS MERCHANTABILITY OR ITS FITNESS FOR ANY
PARTICULAR PURPOSE AND YOU ACCEPT IT, "AS IS," "WHERE IS."d. You also understand that we are not granting any express warranties, other than those stated herein.
These include only those warranties enumerated in paragraph A. a. There are no other express
warranties granted anywhere in these terms and conditions of sale, and you understand and agree tothis fact as part of the bargained for exchange of this sale. Nowhere else, except as stated in thisparagraph, in this contract is there intended, by either party, for there to be any express warranties
granted to you.
e. EXCEPT AS OTHERWISE PROVIDED HEREIN, WE SHALL NOT BE LIABLE FOR DAMAGES, INCLUDINGSPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES WHETHER IN CONTRACT OR IN TORT ARISINGOUT OF OR IN CONNECTION WITH THE PERFORMANCE OF ANY PRODUCT OR ANY COMPONENT PART
THEREOF OR ITS USE BY YOU, AND WE SHALL NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES ARISING OUT OF OR IN CONNECTION WITH YOUR USE OF THE PRODUCT.
f. The warranty on this product is void if the product is modiﬁed, changed, adjusted or damaged. This
product is to be used only in the ways for which it is designed and marketed for, any deviations fromthe intended uses will void the warranty and will excuse any possible liability of ours.
g. You accept sole responsibility for the proper assembly, operation and regular maintenance of the
product. This limited warranty is void if the product is damaged, changed, altered, or modiﬁed by
accident, misuse, improper installation , or abuse, including tampering or damage in transit or while
in use. YOU HAVE MADE AN INDEPENDENT INVESTIGATION OF THE PURCHASED COMPONENTS ANDHAVE RELIED SOLELY ON YOU OWN INVESTIGATION, BARGAINING AND JUDGMENT IN REFERENCE
THERETO. YOU ACKNOWLEDGE THAT YOU ARE NOT RELYING ON OUR SKILL OR JUDGMENT TO
SELECT OR FURNISH GOODS SUITABLE FOR ANY PARTICULAR PURPOSE IN PURCHASING OURPRODUCTS, YOU HAVE NOT RELIED OR ACTED UPON ANY REPRESENTATIONS OR WARRANTIES ON
OUR PART NOT SPECIFICALLY SET FORTH HEREIN.
h. This limited warranty gives you speciﬁc legal rights. You may also have other rights which vary fromstate to state. Some states do not enforce contractual limitations on how long an implied warranty
lasts, when an action may be brought, or the exclusion or limitation of incidental or consequential
damages, so the above limitations or exclusions may not apply to you.
B. Modiﬁcation Strictly ProhibitedYou understand and agree that any modiﬁcation whatsoever , of the product, is strictly prohibited.
You also agree not to modify the product in any manner regardless of whether such modiﬁcation ismaterial or immaterial. You also acknowledge that any modiﬁcation of the product will void yourlimited warranty and bar you from any recovery or any remedy in a court of law or equity.
Modiﬁcation is strictly forbidden unless expressly authorized by our prior written approval. You
agree not to make any modiﬁcations to the product and agree not to use any parts, components, oraccessories in connection with the installation and use of the product that are not authorized andapproved by us.
C. Indemnity and Releasea. You understand and agree that many factors beyond our control aﬀect the operational safety of the
product, including but not to limited to the installation of the product according to the instructions
provided with the product.
b. You also understand and agree that the installation of the product may involve the use of tools,
equipment and construction methods which may present safety hazards which are beyond ourcontrol. You also understand and agree that the use of some of our products may create hazards andlower your ability to control your vehicle.
c. You agree, as part of the bargained for exchange, to protect, indemnify, save harmless and release us,
our authorized agents, employees, oﬃcers, directors and shareholders from and against all liabilities,
obligations, claims, damages, penalties, causes of action, costs and expenses, imposed upon or
incurred by or asserted against us or any assignees of ours, by you or any third party by reason of theoccurrence or existence (or alleged occurrence or existence) of any use, installation, assembly,
possession or operation of the product, any loss, damage or destruction of the product as of andafter delivery(a "casualty occurrence"), and any other act or event relating to or caused by the
product, including but not limited to, consequential or of the terms and conditions hereof, or any
and all liability for property loss or damage, or any and all damage resulting from death or personal
injuries, including loss of services which any person may sustain on account of, arising out of, or inconnection with any use, maintenance, possession or operation of the product. In the event that any
action, suit or proceeding is brought against us or any of our authorized agents, employees, oﬃcers,
directors or shareholders by reason of any such occurrence, you will, upon our request and at yourexpense, resist and defend such action, suit or proceeding or cause the same to be resisted anddefended by counsel designated and approved by us.

Limited one year warranty. The warranty period starts at the date of retail purchase by the original end-userpurchase. Please conﬁrm the warranty card is provided with the information of retail store where purchased. Pleaserefer to Limited Warranty for details.

CautionDouble sided
tape (large) 1pc

Buﬀer
1pc

Mounting
bracket 1pc

M4 bolt, nut,
washer 1pc

Operation manual (this sheet) and warranty card are included other than the parts listed above. Keep them at hand.

■How to attach Volt gauge

Volt is displayed by connecting the power supply wire.

Conﬁrmation

Use the tube fuse of repair part when the fuse of the power supply wire is changed. Using acommercial fuse may aﬀect the accuracy.

Dimensions in mm (1mm=0.039in)

C

B

E
F

Except in the case of defects, we shall not be liable for any trouble including violation, accident or improper
wiring resulting from using this product.
The warranty does not cover any unauthorized repair performed or caused to be performed by the end user.
Such action can destroy or damage this product.

■Inspection

Please ask the shop you purchased the product for inspection if any defect in product is suspected. We don't
accept the order of ﬁxing because Deﬁ products require installation and wiring to the vehicle. In case you cannot
go to the shop you purchased because of move-out or closure of shop, please ask the nearest Deﬁ Distributor
listed on the Deﬁ website.
For a repair/inspection service, take the warranty card and customer contact information with you.
Please conduct periodic inspections by Deﬁ through a shop which sells Deﬁ products or Deﬁʼs oﬃcial distributor
every ﬁve years. Inspection is available at an additional cost. In the case you purchase used products or used
vehicles with products of Deﬁ, Please have an inspection by Deﬁ as well before using them.

■Label

The label sticked on the product is for the product traceability. Do not peel it oﬀ.

DΦA

Be sure the sensor wire is not twisted when installing the sensor. The sensor wire will be cut.
Coolant spills by the installation work. Please replenish the engine with coolant and bleed the airfrom the system, or the engine might overheat.
To avoid water leaks during installation of the sensors, use Teﬂon tape. Attach the sensor
attachment and upper hose with clamps. Inspect hose connections for leaks before driving.
To avoid the damage of the sensor wire, please ﬁx the waterproof connector on the vehicle bodyand do not bend the sensor wire near the sensor.

If any indications of troubles are found in the product, stop the engine and check the product, wiring,and the vehicle right away. Continued use without checking could result in a serious accident.
If any trouble is found while using, setting, and operating, ask the store where this product was
installed or purchased to check the trouble. Inspection by a customer could result in accidents ormalfunction.

Maintenance & Check / Warranty & Servicing

Warning

Gauge diameter

Sensor attachment(commercially available)

Troubleshooting (for customer and installation personnel)

Condition

Exhaust manifold

PDF06002H
PDF00707H
PDF00906H
PDF01107H

WarningExhaust temperature sensor

Warning

Part number

Boost Sensor extension wire 1m(3 1/3ft.)
Pressure Sensor extension wire 2m(6 3/5ft.)
Temp. Sensor extension wire 2m(6 3/5ft.)
Exhaust Temp. Sensor extension wire 2m(6 3/5ft.)

Operation manual (this sheet) and warranty card are included other than the parts listed above. Keep them at hand.

→ To sensor wirePart number
PDF06508G
PDF07809G
PDF06504H
PDF06503S
PDF14604S
PDF06505H
PDF00703S
PDF06603H
PDF00903S
PDF05602H
PDF01103S
PDF06803H
PDF01105G

Fuse 0.3A (2pcs)
Mounting Bracket set for Φ52 & 60mm gauge
Power Supply wire
Boost Sensor (for 200kPa/30PSI )Boost Sensor (for 300kPa/45PSI)
Boost Sensor wire
Pressure Sensor (1/8PT)
Pressure Sensor wire
Temp. Sensor (1/8PT)
Temp. Sensor wire
Exhaust Temp. Sensor
Exhaust Temp. Sensor wire
1/8PT Fitting for Exhaust Temp. Sensor

Black
2pins

Sensor wire (3m, 10ft)
1pc

Terms and Conditions (for customer)

A
B
C
D
E
F

Gauge diameter
Φ60
Φ52
66.3
58.3
52.2
51.8
15.5
15.2
65.9
65.9
15°
15°
32°
25°

■Discarding the products

Please dispose products in accordance with disposal laws, state laws and local government. A recycle label on the
package indicates that the package is recyclable.

Racer Gauge N2 Φ52 & 60mm Operation Manual■ Issue 2nd edition: October, 2019
■ Manufacturer Nippon Seiki Co., Ltd.
■ Contact Information Deﬁ, Nippon Seiki Co., Ltd.
【Address】2-34 Higashi-Zaoh 2-chome, Nagaoka-shi, Niigata 940-8580 JAPAN【URL】https://www.deﬁ-shop.com