This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and therefore not compensated for and can thin the engine out and can after that permit the engine to rev taking place afterward not desired causing severe running. As its a mechanical idiosyncrasy it tends not to twist on the idiosyncrasy buoyant and you can sometimes hear a hissing noise in the same way as the engine running.
Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me tell you a little more just about the burden history. It currently has a master tech ascribed idle freshen govern valve and tps installed. without moving anything, the last (used) ecu and my original, would manage in the car without this symptom.
Hello the TPS does have an effect on switching the car into idle mode suitably I'd recommend to make distinct the throttle plate is 100% closed and not slightly high and dry with carbon. and subsequently familiarize the TPS as a result that the IDL fix is continuous to the E2 fasten once the throttle is closed, and entre circuit following the throttle is just cracked. Don't badly affect roughly any voltages, the IDL right of entry is the truly important one.