Hello, I have repaired higher than 30000 vehicles in my career and I obsession to question you questions before I am not there in person to gather together facts, data, or to test your vehicle. I may ask you to be active investigation in my stead. If psychoanalysis is needed and you would rather not undertaking testing, I can have the funds 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 tell you a tiny more nearly the suffering history. It currently has a master tech credited idle let breathe run valve and tps installed. without disturbing 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 stirring to date upon every maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms up and is warmed up? oftentimes in engine measure many factors may cause the same symptom(s)