Check the hose clips for tightness and examine the trunking for any cracks or splits and as a consequence all the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best quirk to find a leak is to have the engine running and warm and subsequently spray can lighter gas /propane or brake cleaner nearly 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 attain a fast idiosyncrasy find if you unplug the meter and rule the engine without it. if the engine condition is the similar next chances are the meter or the connection to it is faulty. Its with worth cleaning the MAF sensor wires, as they can get coated next dirt more than grow old which next offsets the reading. Use some approach cleaner or brake cleaner to spray onto the wires to separate the dirt upon no account touch the wires taking into consideration everything as they are definitely fragile
I don't have any check engine lights unless I unplug the MAF sensor. in imitation of the MAF is plugged in after that the car will stall unless I put my foot upon the accelerator. There is furthermore an intermittent popping sound coming at idle.