Check the hose clips for tightness and inspect the trunking for any cracks or splits and along with all the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best way to locate a leak is to have the engine handing out and warm and then spray can lighter gas /propane or brake cleaner around each joint in turn. If the engine rev s happening you ve found your leak.
Might then be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can pull off a fast malfunction locate if you unplug the meter and direct the engine without it. if the engine condition is the similar after that chances are the meter or the link to it is faulty. Its along with worth cleaning the MAF sensor wires, as they can acquire coated similar to dirt more than get older which subsequently offsets the reading. Use some edit cleaner or brake cleaner to spray can onto the wires to sever the dirt on no account lie alongside the wires with all as they are no question fragile
Hello the TPS does have an effect upon switching the car into idle mode as a result I'd suggest to make distinct the throttle plate is 100% closed and not slightly grounded past carbon. and subsequently become accustomed the TPS hence that the IDL glue is continuous to the E2 attach bearing in mind the throttle is closed, and read circuit similar to the throttle is just cracked. Don't make miserable approximately any voltages, the IDL read is the truly important one.