This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and as a result not compensated for and can lean the engine out and can in addition to permit the engine to rev occurring behind not desired causing brusque running. As its a mechanical irregularity it tends not to face on the malfunction roomy and you can sometimes listen a hissing noise subsequent to the engine running.
I did re-check them tho. The master tech did extensive tests upon the freshen flow meter and said it was good. later I unplug it and govern the motor, the car runs rude and at 850ish. I can solitary guess that my new rebuilt ecu has an issue, or the tps needs to be re-adjusted, or anyhow my maf has died in the midst of all this. I don't think the tps has that much direct in the oscillate of rpm though? I think it deserted adjusts it a propos 1k..
This could be a large vacuum leak ,with the MAF joined it is single-handedly measuring the freshen that is getting afterward the MAF, for that reason if the intake manifold is sucking in air the air to fuel ratio will be unconditionally out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. considering carb cleaner spray spray in the place of the hissing afterward the engine supervision and subsequently you hear the engine stall or rev sophisticated there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.