Hello, I have repaired more than 30000 vehicles in my career and I obsession to question you questions previously I am not there in person to gather together facts, data, or to exam your vehicle. I may question you to play a part scrutiny in my stead. If testing is needed and you would rather not work testing, I can manage to pay for my best advice, Fuel pressure?
Might moreover be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can attain a fast defect 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 connection to it is faulty. Its after that worth cleaning the MAF sensor wires, as they can acquire coated in the manner of dirt on top of get older which later offsets the reading. Use some log on cleaner or brake cleaner to vaporizer onto the wires to remove the dirt on no account lie alongside the wires once everything as they are totally fragile
I'm reviewing your question now, and will post assist next your reply ASAP. Rgds Greg. What fault codes accomplish you have. Does the engine run later the MAF disconnected. taking into consideration the loud hissing unquestionable this could be your problem. This could be a large vacuum leak ,with the MAF linked it is solitary measuring the expose that is getting considering the MAF, so if the intake manifold is sucking in let breathe the ventilate to fuel ratio will be entirely out and cause the engine to stal