Hello, I have repaired exceeding 30000 vehicles in my career and I compulsion to question you questions in the past I am not there in person to collect facts, data, or to exam your vehicle. I may question you to accomplishment assay in my stead. If laboratory analysis is needed and you would rather not perform testing, I can have enough money my best advice, Fuel pressure?
Might along with be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can pull off a quick fault locate if you unplug the meter and direct the engine without it. if the engine condition is the thesame after that chances are the meter or the attachment to it is faulty. Its then worth cleaning the MAF sensor wires, as they can get coated like dirt higher than era which after that offsets the reading. Use some approach cleaner or brake cleaner to vaporizer onto the wires to cut off the dirt upon no account touch the wires gone all as they are definitely fragile
I'm reviewing your question now, and will publicize urge on subsequently your reply ASAP. Rgds Greg. What defect codes get you have. Does the engine govern taking into account the MAF disconnected. following the loud hissing sealed this could be your problem. This could be a large vacuum leak ,with the MAF joined it is unaccompanied measuring the ventilate that is getting bearing in mind the MAF, suitably if the intake manifold is sucking in ventilate the ventilate to fuel ratio will be no question out and cause the engine to stal