This could be an airleak after the airflow meter, any expose dragged in here isn t seen by the ECU and thus not compensated for and can thin the engine out and can along with permit the engine to rev happening in imitation of not desired causing gruff running. As its a mechanical deformity it tends not to slant on the idiosyncrasy lighthearted and you can sometimes listen a hissing noise behind the engine running.
I did re-check them tho. The master tech did extensive tests upon the ventilate flow meter and said it was good. taking into account I unplug it and rule the motor, the car runs rude and at 850ish. I can and no-one else guess that my extra 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 alternating of rpm though? I think it by yourself adjusts it regarding 1k..
This could be a large vacuum leak ,with the MAF amalgamated it is deserted measuring the let breathe that is getting when the MAF, fittingly if the intake manifold is sucking in let breathe the air to fuel ratio will be agreed out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. in imitation of carb cleaner spray can spray in the area of the hissing considering the engine organization and past you hear the engine stall or rev vanguard there is the leak ,could be a bad vacuum hose bad gasket on the manifold.