1993 Buick Regal Fuse Box

This could be an airleak after the airflow meter, any freshen dragged in here isn t seen by the ECU and correspondingly not compensated for and can lean the engine out and can furthermore allow the engine to rev in the works in the manner of not desired causing gruff running. As its a mechanical malformation it tends not to slope upon the deviation lively and you can sometimes hear a hissing noise like 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 say you a little more virtually the trouble history. It currently has a master tech certified idle expose run valve and tps installed. without heartwarming anything, the last (used) ecu and my original, would manage in the car without this symptom.

Hello the TPS does have an effect upon switching the car into idle mode therefore I'd recommend to create sure the throttle dish is 100% closed and not slightly ashore following carbon. and subsequently acclimatize the TPS hence that the IDL stick is continuous to the E2 attach subsequent to the throttle is closed, and contact circuit once the throttle is just cracked. Don't make miserable just about any voltages, the IDL entrance is the essentially important one.

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