ECM ON 94 FOUR WHEEL DRIVE
Asked by quarterman Sep 22, 2011 at 02:43 PM about the 1994 Toyota Pickup 2 Dr DX 4WD Standard Cab SB
Question type: Maintenance & Repair
HAD MOTOR CHANGED/REBUILT , SINCE THEN, ECM KEEPS GOING OUT AND HAS FILLED THE CYLINDERS UP WITH GAS THREE TIMES. WHAT IS WRONG?
2 Answers
you have a pinched wire to your injectors somewhere. your injectors have constant power and ground trigger from your ecm to get pulsation. turn your key on and with a test light check your ground wire to your injectors. should not light up unless your cranking, even then it should pulsate not stay lit. hope that helps good luck
Im having the same problem after a motor swap trucks been sitting since 2014 also but it keeps burning the ecu not letting the injectors open also gotta bypass fuel.pump by the temranials on the obd1 plug underhood. Ive done checked everything even all the injector wires and grounds even added like 4 more from.frame to motor from motor to battery also.from motor to fire wall it only goes.out when you go over half throttle.