This could be an airleak after the airflow meter, any freshen dragged in here isn t seen by the ECU and hence not compensated for and can thin the engine out and can then allow the engine to rev going on when not desired causing coarse running. As its a mechanical irregularity it tends not to point upon the aberration vivacious and you can sometimes hear a hissing noise taking into consideration the engine running.
Might afterward be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can do a quick anomaly locate if you unplug the meter and direct the engine without it. if the engine condition is the similar later chances are the meter or the link to it is faulty. Its next worth cleaning the MAF sensor wires, as they can acquire coated afterward dirt beyond period which then offsets the reading. Use some entre cleaner or brake cleaner to spray onto the wires to sever the dirt upon no account lie alongside the wires afterward everything as they are totally fragile
Hello the TPS does have an effect on switching the car into idle mode hence I'd suggest to create definite the throttle plate is 100% closed and not slightly stranded taking into account carbon. and subsequently get used to the TPS as a result that the IDL fix is continuous to the E2 stick considering the throttle is closed, and contact circuit in imitation of the throttle is just cracked. Don't worry practically any voltages, the IDL admittance is the in fact important one.