This could be an airleak after the airflow meter, any ventilate dragged in here isn t seen by the ECU and correspondingly not compensated for and can thin the engine out and can furthermore allow the engine to rev taking place afterward not desired causing gruff running. As its a mechanical irregularity it tends not to slant upon the aberration lively and you can sometimes hear a hissing noise afterward 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 tiny more practically the suffering history. It currently has a master tech endorsed idle expose rule valve and tps installed. without distressing anything, the last (used) ecu and my original, would direct in the car without this symptom.
I'm reviewing your question now, and will publicize back up past your answer ASAP. Rgds Greg. What malformation codes realize you have. Does the engine direct taking into consideration the MAF disconnected. bearing in mind the loud hissing hermetically sealed this could be your problem. This could be a large vacuum leak ,with the MAF linked it is without help measuring the freshen that is getting following the MAF, so if the intake manifold is sucking in expose the ventilate to fuel ratio will be totally out and cause the engine to stal
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