Hello, I have repaired greater than 30000 vehicles in my career and I dependence to question you questions previously I am not there in person to collect facts, data, or to exam your vehicle. I may ask you to statute examination in my stead. If study is needed and you would rather not take effect testing, I can provide my best advice, Fuel pressure?
Might after that be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can reach a quick deviation locate if you unplug the meter and govern the engine without it. if the engine condition is the thesame later chances are the meter or the relationship to it is faulty. Its in addition to worth cleaning the MAF sensor wires, as they can acquire coated subsequent to dirt on top of epoch which then offsets the reading. Use some get into cleaner or brake cleaner to spray onto the wires to surgically remove the dirt on no account adjoin the wires following whatever as they are utterly fragile
This could be a large vacuum leak ,with the MAF aligned it is only measuring the ventilate that is getting like the MAF, correspondingly if the intake manifold is sucking in air the expose to fuel ratio will be no question out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. when carb cleaner spray can spray can in the area of the hissing next the engine management and as soon as you listen the engine stall or rev far along there is the leak ,could be a bad vacuum hose bad gasket on the manifold.