Check the hose clips for tightness and examine the trunking for any cracks or splits and as well as every the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best pretension to locate a leak is to have the engine organization and hot and next spray can lighter gas /propane or brake cleaner around each joint in turn. If the engine rev s occurring you ve found your leak.
Might also be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can get a quick malfunction find if you unplug the meter and control the engine without it. if the engine condition is the similar next chances are the meter or the relationship to it is faulty. Its along with worth cleaning the MAF sensor wires, as they can acquire coated considering dirt over grow old which next offsets the reading. Use some right of entry cleaner or brake cleaner to spray onto the wires to sever the dirt upon no account be adjacent to the wires as soon as everything as they are unconditionally fragile
Hello the TPS does have an effect on switching the car into idle mode consequently I'd recommend to create determined the throttle dish is 100% closed and not slightly high and dry once carbon. and after that acclimatize the TPS appropriately that the IDL fasten is continuous to the E2 fix with the throttle is closed, and way in circuit gone the throttle is just cracked. Don't bother about any voltages, the IDL admission is the really important one.