AMENDMENT TO LICENSE AGREEMENT BETWEEN
                      THE DAVIS FAMILY TRUST AND ELECTRONIC
                               FUEL CONTROL, INC.

         This  Amendment  is  entered  into this the 3rd day of  January,  2000,
between the DAVIS FAMILY TRUST and ELECTRONIC FUEL CONTROL, INC.

         WHEREAS,  the DAVIS FAMILY TRUST ("Trust") and ELECTRONIC DUEL CONTROL,
INC.  ("EFC")  entered into a License  Agreement  dated May 13, 1996 under which
ELECTRONIC FUEL CONTROL, INC, received certain rights to letters patent owned by
the Trust and the Trust received certain remuneration; and

         WHEREAS,  the EFC and the  Trust  have  reached  agreement  on  certain
changes to be made to said License  Agreement  and wish to reduce those  changes
to' written form;

         NOW,  THEREFORE,  for  and in  consideration  of the  mutual  promises;
covenants,  warranties, and agreements heretofore made and now set forth in this
Agreement, the parties hereto do hereby agree as follows:

                                       I.

         The first  sentence  of Article 20 of that  certain  License  Agreement
entered into between the Trust and EFC dated May 13, 1996 is hereby  stricken in
its entirety and the following language is inserted in lieu thereof:

         "This licensing Agreement covering the "Licensed Patented Rights" shall
         encompass  and be valid  within and only within the  boundaries  of the
         continental  United States of America,  Mexico,  Canada,  the sovereign
         nation of Egypt as the borders thereof are defined on January 3, 2000,


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and South America."

                                       II.

         The  content  and   language  of  Article  21 of that  certain  License
Agreement  entered  into  between the Trust and EFC dated May 13, 1996 is hereby
stricken in its entirety and the following language is inserted in lieu thereof:

"Reserved."

                                       3.

         In  return  for  the  changes  herein  agreed  upon by the  Trust  upon
execution hereof by EFC, EFC shall issue or cause to be issued 250,000 shares of
EFC's common voting stock in the name of the Davis Family Trust and deliver said
stock to the Trustee of said Trust. It is agreed that said stock shall be issued
on the  basis of the  price of EFC  common  voting  stock  as  reflected  on the
exchange  where said stock is traded at the close of business on August 5, 1999.
The parties agree that the 250,000 shares of common voting stock issued pursuant
to  this  Amendment  to  License  Agreement  shall  not  be  encumbered  by  any
restrictions on the sale or transfer thereof extending beyond a period of twelve
(12)  calendar  months from the date of issuance.  Further;  EFC agrees that the
ownership  percentage  held by the Trust in EFC after  issuance  of said  common
voting  shares  shall not  thereafter  be  diluted  nor shall  EFC  permit  said
ownership  percentage  to be diluted  by any act,  deed,  or conduct of EFC,  it
officers, agents,  representatives,  directors, or other person or entity acting
or purporting to act on its behalf.


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<PAGE>

                                       4.

         This  agreement  may be executed in one or more  counterparts,  each of
which  shall  be  deemed  to be an  original  but all of  which  together  shall
constitute but one and the same instrument.

         IN WITNESS WHEREOF,  the parties hereto have executed this agreement by
affixing  respectively the signature of a duly authorized  officer of EFC and by
the Trustee of the Davis Family Trust, this the 4 day of January, 2000.

                                                   ELECTRONIC FUEL CONTROL, INC.




                                                   /s/ Robby E. Davis
                                                   ------------------
                                                   Robby E. Davis
                                                   Its president

/s/ Donna Henderson
-------------------
Donna Henderson
Witness


Attested to:                                                  CORPORATE SEAL


/s/ Jeffrey F. Davis
--------------------
Jeffrey F. Davis
Corporate Secretary

                                                   THE DAVIS FAMILY TRUST


                                                   /s/ Mark W. Crouch, Trustee
                                                   ---------------------------
                                                   Mark W. Crouch, Trustee

_________________________
Witness


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