This could be an airleak after the airflow meter, any expose dragged in here isn t seen by the ECU and appropriately not compensated for and can lean the engine out and can after that allow the engine to rev up when not desired causing rough running. As its a mechanical anomaly it tends not to viewpoint on the malfunction vivacious and you can sometimes listen a hissing noise later than the engine running.
Its also worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a not at your best pump will all outcome in insufficient fuel innate delivered to the engine. Might furthermore be worth cleaning out the idle quickness control motor / valve as these acquire clogged up similar to carbon and some brake cleaner washed through helps clear things off.
Hello the TPS does have an effect upon switching the car into idle mode fittingly I'd suggest to create determined the throttle plate is 100% closed and not slightly beached bearing in mind carbon. and subsequently acclimatize the TPS thus that the IDL fasten is continuous to the E2 pin afterward the throttle is closed, and right to use circuit past the throttle is just cracked. Don't distress practically any voltages, the IDL entre is the in point of fact important one.