Hello, I have repaired beyond 30000 vehicles in my career and I dependence to question you questions since I am not there in person to hoard facts, data, or to test your vehicle. I may question you to sham chemical analysis in my stead. If laboratory analysis is needed and you would rather not affect testing, I can give my best advice, Fuel pressure?
Its then 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 consequences in insufficient fuel mammal delivered to the engine. Might moreover be worth cleaning out the idle enthusiasm direct motor / valve as these acquire clogged going on taking into consideration 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 consequently I'd suggest to make sure the throttle plate is 100% closed and not slightly grounded subsequently carbon. and subsequently adjust the TPS in view of that that the IDL fasten is continuous to the E2 pin as soon as the throttle is closed, and read circuit in the manner of the throttle is just cracked. Don't bother virtually any voltages, the IDL admittance is the in fact important one.