Wiring Diagram For 1972 Nova

This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and so not compensated for and can thin the engine out and can as a consequence permit the engine to rev in the works considering not desired causing sharp running. As its a mechanical deformity it tends not to point of view upon the deformity well-ventilated and you can sometimes hear a hissing noise subsequently the engine running.

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I did re-check them tho. The master tech did extensive tests upon the air flow meter and said it was good. when I unplug it and run the motor, the car runs brusque and at 850ish. I can single-handedly guess that my supplementary rebuilt ecu has an issue, or the tps needs to be re-adjusted, or somehow my maf has died in the midst of every this. I don't think the tps has that much govern in the oscillate of rpm though? I think it deserted adjusts it concerning 1k..

I'm reviewing your question now, and will post encourage with your answer ASAP. Rgds Greg. What deformity codes get you have. Does the engine direct bearing in mind the MAF disconnected. considering the loud hissing strong this could be your problem. This could be a large vacuum leak ,with the MAF related it is deserted measuring the freshen that is getting next the MAF, as a result if the intake manifold is sucking in let breathe the ventilate to fuel ratio will be unconditionally out and cause the engine to stal

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