72 Caprice Wiring Diagram

This could be an airleak after the airflow meter, any freshen dragged in here isn t seen by the ECU and as a result not compensated for and can lean the engine out and can along with permit the engine to rev occurring behind not desired causing uncompromising running. As its a mechanical defect it tends not to direction upon the malfunction spacious and you can sometimes listen a hissing noise when the engine running.

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Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me tell you a tiny more approximately the difficulty history. It currently has a master tech endorsed idle expose govern valve and tps installed. without distressing anything, the last (used) ecu and my original, would control in the car without this symptom.

have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you up to date on every maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms going on and is warmed up? oftentimes in engine put on an act many factors may cause the similar symptom(s)

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