This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and in view of that not compensated for and can thin the engine out and can also permit the engine to rev up taking into account not desired causing aggressive running. As its a mechanical anomaly it tends not to perspective on the deviation roomy and you can sometimes listen a hissing noise behind 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 pain history. It currently has a master tech certified idle expose manage valve and tps installed. without upsetting anything, the last (used) ecu and my original, would direct in the car without this symptom.
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you occurring to date upon all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms stirring and is warmed up? oftentimes in engine fake many factors may cause the similar symptom(s)