Hello, I have repaired exceeding 30000 vehicles in my career and I dependence to ask you questions before I am not there in person to accumulate facts, data, or to test your vehicle. I may ask you to perform testing in my stead. If psychoanalysis is needed and you would rather not perform testing, I can come up with the money for my best advice, Fuel pressure?
Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me say you a tiny more nearly the difficulty history. It currently has a master tech attributed idle expose direct valve and tps installed. without distressing anything, the last (used) ecu and my original, would govern in the car without this symptom.
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you stirring 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 perform many factors may cause the similar symptom(s)