I am working on a C 1500 pickup with a 5.7 engine. With a noid tester on the TBI lead I get no pulse. I have tried disconnecting all sensors and have even replaced ECM. I have voltage on one side of injectors, but the ECM will not provide ground. I have tested the ECM for power and ground as best I can and all seems good. Engine will start if you pour gas in throttle body but will only run until gas in intake is gone. New ECM did not come with prom chips not sure if this may be my problem. Also, not sure about leads from distributor is this where the ECM sees that the engine is turning? This model does not have a crank sensor and I cannot find a parts listing for a cam sensor. Any help would be greatly appreciated.
Wednesday, September 5th, 2018 AT 10:40 AM