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 with permit the engine to rev happening subsequent to not desired causing argumentative running. As its a mechanical defect it tends not to point upon the idiosyncrasy lighthearted and you can sometimes hear a hissing noise considering the engine running.
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 roughly the difficulty history. It currently has a master tech official idle ventilate govern valve and tps installed. without moving anything, the last (used) ecu and my original, would run in the car without this symptom.
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