This could be an airleak after the airflow meter, any freshen dragged in here isn t seen by the ECU and thus not compensated for and can thin the engine out and can after that permit the engine to rev taking place past not desired causing uncompromising running. As its a mechanical fault it tends not to slope upon the aberration vivacious and you can sometimes hear a hissing noise later than 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 consideration I unplug it and direct the motor, the car runs gruff and at 850ish. I can unaided 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 run in the interchange of rpm though? I think it single-handedly adjusts it a propos 1k..
This could be a large vacuum leak ,with the MAF associated it is abandoned measuring the air that is getting next the MAF, therefore if the intake manifold is sucking in air the expose to fuel ratio will be completely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. similar to carb cleaner vaporizer vaporizer in the area of the hissing following the engine executive and afterward you listen the engine stall or rev difficult there is the leak ,could be a bad vacuum hose bad gasket on the manifold.