This could be an airleak after the airflow meter, any air dragged in here isn t seen by the ECU and thus not compensated for and can thin the engine out and can moreover allow the engine to rev occurring like not desired causing brusque running. As its a mechanical malformation it tends not to twist on the irregularity vivacious and you can sometimes hear a hissing noise subsequent to the engine running.
I did re-check them tho. The master tech did extensive tests on the freshen flow meter and said it was good. later I unplug it and rule the motor, the car runs harsh and at 850ish. I can only guess that my further rebuilt ecu has an issue, or the tps needs to be re-adjusted, or anyhow my maf has died in the midst of every this. I don't think the tps has that much manage in the substitute of rpm though? I think it forlorn adjusts it just about 1k..
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you in the works 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 going on and is warmed up? oftentimes in engine act out many factors may cause the thesame symptom(s)