This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and suitably not compensated for and can lean the engine out and can as well as allow the engine to rev up once not desired causing rasping running. As its a mechanical irregularity it tends not to tilt on the defect roomy and you can sometimes listen a hissing noise taking into consideration the engine running.
Its plus worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a under the weather pump will every result in insufficient fuel monster delivered to the engine. Might then be worth cleaning out the idle quickness rule motor / valve as these get clogged happening once carbon and some brake cleaner washed through helps pardon things off.
Hello the TPS does have an effect upon switching the car into idle mode appropriately I'd suggest to create definite the throttle dish is 100% closed and not slightly beached later carbon. and next accustom yourself the TPS fittingly that the IDL stick is continuous to the E2 pin past the throttle is closed, and admittance circuit following the throttle is just cracked. Don't cause problems about any voltages, the IDL entry is the in fact important one.