This could be an airleak after the airflow meter, any expose dragged in here isn t seen by the ECU and consequently not compensated for and can lean the engine out and can also allow the engine to rev stirring once not desired causing brusque running. As its a mechanical irregularity it tends not to outlook upon the oddity roomy and you can sometimes hear a hissing noise subsequently the engine running.
I did re-check them tho. The master tech did extensive tests upon the let breathe flow meter and said it was good. later than I unplug it and rule the motor, the car runs unfriendly and at 850ish. I can by yourself guess that my additional rebuilt ecu has an issue, or the tps needs to be re-adjusted, or someway my maf has died in the midst of every this. I don't think the tps has that much control in the different of rpm though? I think it on your own adjusts it nearly 1k..
This could be a large vacuum leak ,with the MAF aligned it is unaccompanied measuring the freshen that is getting subsequently the MAF, correspondingly if the intake manifold is sucking in freshen the let breathe to fuel ratio will be totally out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. later carb cleaner vaporizer spray can in the place of the hissing past the engine supervision and considering you hear the engine stall or rev unconventional there is the leak ,could be a bad vacuum hose bad gasket on the manifold.