Hello, I have repaired exceeding 30000 vehicles in my career and I need to ask you questions previously I am not there in person to store up facts, data, or to exam your vehicle. I may ask you to play a role examination in my stead. If assay is needed and you would rather not statute testing, I can give my best advice, Fuel pressure?
Might as a consequence be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can get a quick deformity find if you unplug the meter and control the engine without it. if the engine condition is the similar then chances are the meter or the membership to it is faulty. Its afterward worth cleaning the MAF sensor wires, as they can get coated in the same way as dirt greater than become old which then offsets the reading. Use some right of entry cleaner or brake cleaner to spray onto the wires to sever the dirt upon no account lie alongside the wires taking into consideration anything as they are unconditionally fragile
This could be a large vacuum leak ,with the MAF joined it is lonesome measuring the expose that is getting in the manner of the MAF, for that reason if the intake manifold is sucking in expose the ventilate to fuel ratio will be utterly out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. subsequently carb cleaner spray can vaporizer in the place of the hissing as soon as the engine doling out and behind you hear the engine stall or rev later there is the leak ,could be a bad vacuum hose bad gasket on the manifold.