This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and for that reason not compensated for and can thin the engine out and can moreover allow the engine to rev occurring past not desired causing scratchy running. As its a mechanical malfunction it tends not to perspective on the irregularity lively and you can sometimes hear a hissing noise in the same way as 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. later than I unplug it and rule the motor, the car runs harsh and at 850ish. I can forlorn guess that my additional 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 alternating of rpm though? I think it unaided adjusts it something like 1k..
Hello the TPS does have an effect upon switching the car into idle mode appropriately I’d suggest to make clear the throttle dish is 100% closed and not slightly high and dry like carbon. and after that become accustomed the TPS hence that the IDL pin is continuous to the E2 stick gone the throttle is closed, and edit circuit in the same way as the throttle is just cracked. Don’t worry nearly any voltages, the IDL read is the essentially important one.
Photo References for wiring diagram for simple light switch
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