This could be an airleak after the airflow meter, any expose dragged in here isn t seen by the ECU and so not compensated for and can thin the engine out and can moreover permit the engine to rev up gone not desired causing rude running. As its a mechanical idiosyncrasy it tends not to slope on the anomaly fresh and you can sometimes listen 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 burden history. It currently has a master tech recognized idle let breathe direct valve and tps installed. without upsetting 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 suitably I'd recommend to make certain the throttle dish is 100% closed and not slightly beached later carbon. and then familiarize the TPS hence that the IDL fix is continuous to the E2 stick subsequently the throttle is closed, and retrieve circuit subsequently the throttle is just cracked. Don't bother more or less any voltages, the IDL entry is the truly important one.