This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and therefore not compensated for and can lean the engine out and can as well as allow the engine to rev occurring later not desired causing brusque running. As its a mechanical oddity it tends not to turn on the aberration fresh and you can sometimes listen a hissing noise in the manner of 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. considering I unplug it and manage the motor, the car runs sharp and at 850ish. I can only guess that my supplementary 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 govern in the exchange of rpm though? I think it deserted adjusts it on the order of 1k..
I'm reviewing your ask now, and will declare incite next your respond ASAP. Rgds Greg. What aberration codes pull off you have. Does the engine control gone the MAF disconnected. following the noisy hissing sealed this could be your problem. This could be a large vacuum leak ,with the MAF similar it is and no-one else measuring the let breathe that is getting next the MAF, correspondingly if the intake manifold is sucking in let breathe the let breathe to fuel ratio will be definitely out and cause the engine to stal