Check the hose clips for tightness and inspect the trunking for any cracks or splits and moreover every the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best mannerism to locate a leak is to have the engine running and warm and then spray can lighter gas /propane or brake cleaner in the region of each joint in turn. If the engine rev s going on you ve found your leak.
Might in addition to be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can do a fast anomaly locate if you unplug the meter and run the engine without it. if the engine condition is the similar then chances are the meter or the association to it is faulty. Its plus worth cleaning the MAF sensor wires, as they can get coated similar to dirt more than time which later offsets the reading. Use some gain access to cleaner or brake cleaner to spray can onto the wires to cut off the dirt on no account be next to the wires similar to anything as they are completely fragile
Hello the TPS does have an effect on switching the car into idle mode in view of that I'd recommend to create distinct the throttle plate is 100% closed and not slightly high and dry bearing in mind carbon. and then get used to the TPS thus that the IDL fix is continuous to the E2 fix considering the throttle is closed, and retrieve circuit afterward the throttle is just cracked. Don't worry practically any voltages, the IDL contact is the in fact important one.