This could be an airleak after the airflow meter, any freshen dragged in here isn t seen by the ECU and suitably not compensated for and can thin the engine out and can afterward allow the engine to rev occurring taking into account not desired causing prickly running. As its a mechanical fault it tends not to twist upon the defect lively and you can sometimes hear a hissing noise past the engine running.
I did re-check them tho. The master tech did extensive tests upon the expose flow meter and said it was good. in imitation of I unplug it and run the motor, the car runs rasping and at 850ish. I can solitary guess that my new rebuilt ecu has an issue, or the tps needs to be re-adjusted, or somehow my maf has died in the midst of all this. I don't think the tps has that much direct in the alternating of rpm though? I think it deserted adjusts it roughly 1k..
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you going on 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 taking place and is warmed up? oftentimes in engine behave many factors may cause the same symptom(s)