Hello, I have repaired over 30000 vehicles in my career and I obsession to question you questions back I am not there in person to pile up facts, data, or to exam your vehicle. I may ask you to exploit assay in my stead. If psychotherapy is needed and you would rather not perform testing, I can offer 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 little more more or less the problem history. It currently has a master tech certified idle freshen rule valve and tps installed. without distressing 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 happening to date on all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms in the works and is warmed up? oftentimes in engine play a role many factors may cause the same symptom(s)