This could be an airleak after the airflow meter, any freshen dragged in here isn t seen by the ECU and consequently not compensated for and can lean the engine out and can then permit the engine to rev in the works in the same way as not desired causing uncompromising running. As its a mechanical deformity it tends not to face upon the deformity blithe and you can sometimes listen a hissing noise in imitation of the engine running.
Might furthermore be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can complete a fast oddity locate if you unplug the meter and control the engine without it. if the engine condition is the same next chances are the meter or the attachment to it is faulty. Its next worth cleaning the MAF sensor wires, as they can acquire coated next dirt on top of times which then offsets the reading. Use some open cleaner or brake cleaner to spray onto the wires to sever the dirt on no account lie alongside the wires considering everything as they are agreed fragile
Hello the TPS does have an effect upon switching the car into idle mode consequently I'd recommend to create determined the throttle plate is 100% closed and not slightly stuck past carbon. and subsequently become accustomed the TPS hence that the IDL glue is continuous to the E2 pin behind the throttle is closed, and right of entry circuit bearing in mind the throttle is just cracked. Don't trouble just about any voltages, the IDL way in is the really important one.