Hello, I have repaired greater than 30000 vehicles in my career and I obsession to question you questions past I am not there in person to assemble facts, data, or to test your vehicle. I may ask you to behave laboratory analysis in my stead. If scrutiny is needed and you would rather not perform testing, I can pay 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 not quite the burden history. It currently has a master tech credited idle freshen direct valve and tps installed. without heartwarming anything, the last (used) ecu and my original, would run in the car without this symptom.
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you up to date on 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 piece of legislation many factors may cause the thesame symptom(s)