1988 Chevy Cavalier 4 cyl Front Wheel Drive Automatic 64K miles
the car starts and runs has a fast idle at start up hot or cold,(with the alternator unpluged) but corrects itself until its put into gear then it goes up more than normal, the service engine soon lamp is on and it won't scan, when the alt. gets pluged in and the voltage regulator kicks in it stalls the engine, also if a remote battery charger is connected to the battery and put above 20A it stalls the engine,
Things that has been replaced was the alternator 3 times, ignition switch, ignition module, ECM 2 times with remans. starter solinoid,battery?,fuel pump felay,ECM relay. wirring harness grounds to the ECM and body have been ohm's tested and pass,(toned).
Used a timming light to check ignition when the regulator is pluged in OK and used the t/light to watch the injector pulse when the regulator is pluged in also and it appears the fuel injector shuts down but the fuel pump don't and also the pump has been hot wired for the test from its prime harness
have the same problem?
Friday, May 1st, 2009 AT 11:07 AM