This could be an airleak after the airflow meter, any freshen dragged in here isn t seen by the ECU and correspondingly not compensated for and can lean the engine out and can then allow the engine to rev taking place in imitation of not desired causing uncompromising running. As its a mechanical deviation it tends not to twist on the irregularity fresh and you can sometimes listen a hissing noise next the engine running.
I did re-check them tho. The master tech did extensive tests on the ventilate flow meter and said it was good. similar to I unplug it and manage the motor, the car runs rough and at 850ish. I can on your own guess that my supplementary 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 run in the alternating of rpm though? I think it isolated adjusts it more or less 1k..
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you occurring 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 stirring and is warmed up? oftentimes in engine perform many factors may cause the thesame symptom(s)