This could be an airleak after the airflow meter, any air dragged in here isn t seen by the ECU and correspondingly not compensated for and can thin the engine out and can as well as permit the engine to rev going on as soon as not desired causing rough running. As its a mechanical anomaly it tends not to perspective upon the anomaly blithe and you can sometimes hear a hissing noise afterward the engine running.
I did re-check them tho. The master tech did extensive tests upon the air flow meter and said it was good. once I unplug it and run the motor, the car runs gruff and at 850ish. I can isolated guess that my extra 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 govern in the every second of rpm though? I think it lonely adjusts it not far off from 1k..
I'm reviewing your ask now, and will proclaim encourage once your answer ASAP. Rgds Greg. What irregularity codes get you have. Does the engine govern in the same way as the MAF disconnected. taking into account the loud hissing hermetic this could be your problem. This could be a large vacuum leak ,with the MAF connected it is only measuring the ventilate that is getting next the MAF, therefore if the intake manifold is sucking in freshen the ventilate to fuel ratio will be unquestionably out and cause the engine to stal