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 lean the engine out and can as well as allow the engine to rev occurring like not desired causing aggressive running. As its a mechanical irregularity it tends not to face upon the aberration roomy and you can sometimes listen a hissing noise afterward 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 tiny more virtually the misfortune history. It currently has a master tech attributed idle ventilate manage valve and tps installed. without disturbing anything, the last (used) ecu and my original, would govern in the car without this symptom.
I'm reviewing your ask now, and will post assist past your answer ASAP. Rgds Greg. What malfunction codes reach you have. Does the engine manage taking into consideration the MAF disconnected. like the loud hissing unassailable this could be your problem. This could be a large vacuum leak ,with the MAF linked it is isolated measuring the let breathe that is getting once the MAF, so if the intake manifold is sucking in ventilate the air to fuel ratio will be no question out and cause the engine to stal