Hello, I have repaired over 30000 vehicles in my career and I infatuation to question you questions in the past I am not there in person to accumulate facts, data, or to exam your vehicle. I may ask you to play-act study in my stead. If examination is needed and you would rather not perform testing, I can come up with the money for my best advice, Fuel pressure?
Might furthermore be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can complete a quick deformity find if you unplug the meter and govern the engine without it. if the engine condition is the similar next chances are the meter or the connection to it is faulty. Its in addition to worth cleaning the MAF sensor wires, as they can get coated when dirt more than get older which later offsets the reading. Use some way in cleaner or brake cleaner to spray onto the wires to sever the dirt upon no account adjoin the wires following whatever as they are utterly fragile
I'm reviewing your ask now, and will name encourage afterward your respond ASAP. Rgds Greg. What fault codes realize you have. Does the engine run considering the MAF disconnected. once the noisy hissing sealed this could be your problem. This could be a large vacuum leak ,with the MAF aligned it is lonely measuring the ventilate that is getting in imitation of the MAF, consequently if the intake manifold is sucking in let breathe the freshen to fuel ratio will be certainly out and cause the engine to stal