This could be an airleak after the airflow meter, any ventilate dragged in here isn t seen by the ECU and suitably not compensated for and can thin the engine out and can in addition to permit the engine to rev in the works later not desired causing uncompromising running. As its a mechanical irregularity it tends not to incline on the defect blithe and you can sometimes hear a hissing noise with the engine running.
I did re-check them tho. The master tech did extensive tests on the freshen flow meter and said it was good. afterward I unplug it and direct the motor, the car runs brusque and at 850ish. I can without help guess that my further 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 oscillate of rpm though? I think it forlorn adjusts it going on for 1k..
This could be a large vacuum leak ,with the MAF joined it is only measuring the expose that is getting taking into account the MAF, correspondingly if the intake manifold is sucking in expose the air 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. once carb cleaner spray vaporizer in the place of the hissing bearing in mind the engine executive and behind you listen the engine stall or rev far along there is the leak ,could be a bad vacuum hose bad gasket on the manifold.