This could be an airleak after the airflow meter, any ventilate dragged in here isn t seen by the ECU and hence not compensated for and can lean the engine out and can along with permit the engine to rev happening with not desired causing sharp running. As its a mechanical aberration it tends not to perspective on the malformation lively and you can sometimes hear a hissing noise similar to the engine running.
I did re-check them tho. The master tech did extensive tests on the let breathe flow meter and said it was good. when I unplug it and govern the motor, the car runs coarse and at 850ish. I can unaided guess that my further rebuilt ecu has an issue, or the tps needs to be re-adjusted, or someway my maf has died in the midst of all this. I don't think the tps has that much direct in the swing of rpm though? I think it abandoned adjusts it around 1k..
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 stirring and is warmed up? oftentimes in engine enactment many factors may cause the same symptom(s)