This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and hence not compensated for and can lean the engine out and can also permit the engine to rev happening afterward not desired causing scratchy running. As its a mechanical malformation it tends not to aim upon the malfunction open 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 upon the let breathe flow meter and said it was good. bearing in mind I unplug it and control the motor, the car runs sharp and at 850ish. I can lonely guess that my additional rebuilt ecu has an issue, or the tps needs to be re-adjusted, or anyhow my maf has died in the midst of every this. I don't think the tps has that much rule in the swing of rpm though? I think it single-handedly adjusts it going on for 1k..
This could be a large vacuum leak ,with the MAF amalgamated it is isolated measuring the let breathe that is getting considering the MAF, suitably if the intake manifold is sucking in air the expose to fuel ratio will be entirely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. as soon as carb cleaner vaporizer spray in the place of the hissing next the engine presidency and like you listen the engine stall or rev innovative there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.