Check the hose clips for tightness and inspect the trunking for any cracks or splits and after that every the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best pretension to find a leak is to have the engine organization and hot and next spray can lighter gas /propane or brake cleaner roughly 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 complete a fast anomaly find if you unplug the meter and manage the engine without it. if the engine condition is the similar then chances are the meter or the attachment to it is faulty. Its afterward worth cleaning the MAF sensor wires, as they can acquire coated taking into account dirt beyond get older which then offsets the reading. Use some admission cleaner or brake cleaner to spray onto the wires to sever the dirt upon no account lie alongside the wires bearing in mind whatever as they are categorically fragile
I don't have any check engine lights unless I unplug the MAF sensor. later the MAF is plugged in next the car will stall unless I put my foot upon the accelerator. There is moreover an intermittent popping solid coming at idle.