1987 Chevy Truck Wiring Diagram Pdf

This could be an airleak after the airflow meter, any freshen dragged in here isn t seen by the ECU and therefore not compensated for and can lean the engine out and can with permit the engine to rev going on once not desired causing harsh running. As its a mechanical irregularity it tends not to outlook on the oddity buoyant and you can sometimes listen a hissing noise as soon as the engine running.

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I did re-check them tho. The master tech did extensive tests on the freshen flow meter and said it was good. like I unplug it and run the motor, the car runs harsh and at 850ish. I can deserted guess that my additional rebuilt ecu has an issue, or the tps needs to be re-adjusted, or anyhow my maf has died in the midst of all this. I don't think the tps has that much rule in the swing of rpm though? I think it on your own adjusts it not far off from 1k..

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