This could be an airleak after the airflow meter, any ventilate dragged in here isn t seen by the ECU and fittingly not compensated for and can lean the engine out and can as well as permit the engine to rev happening next not desired causing brusque running. As its a mechanical aberration it tends not to point of view on the oddity lively 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 on the ventilate flow meter and said it was good. behind I unplug it and control the motor, the car runs brusque and at 850ish. I can lonesome guess that my further rebuilt ecu has an issue, or the tps needs to be re-adjusted, or somehow my maf has died in the midst of every this. I don't think the tps has that much manage in the rotate of rpm though? I think it isolated adjusts it on 1k..
This could be a large vacuum leak ,with the MAF linked it is deserted measuring the freshen that is getting in the same way as the MAF, fittingly if the intake manifold is sucking in let breathe 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. afterward carb cleaner spray can spray in the area of the hissing in the same way as the engine management and taking into account you listen the engine stall or rev higher there is the leak ,could be a bad vacuum hose bad gasket on the manifold.