This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and for that reason not compensated for and can thin the engine out and can then allow the engine to rev occurring with not desired causing unfriendly running. As its a mechanical fault it tends not to face on the anomaly buoyant and you can sometimes hear a hissing noise similar to 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 hardship history. It currently has a master tech official idle let breathe govern valve and tps installed. without distressing anything, the last (used) ecu and my original, would direct in the car without this symptom.
I don't have any check engine lights unless I unplug the MAF sensor. similar to the MAF is plugged in then the car will stall unless I put my foot on the accelerator. There is next an intermittent popping unquestionable coming at idle.