Hello, I have repaired beyond 30000 vehicles in my career and I need to ask you questions in the past I am not there in person to store up facts, data, or to exam your vehicle. I may ask you to be in scrutiny in my stead. If chemical analysis is needed and you would rather not take effect testing, I can meet the expense of my best advice, Fuel pressure?
Might in addition to be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can attain a quick deformity find if you unplug the meter and manage the engine without it. if the engine condition is the thesame next chances are the meter or the attachment to it is faulty. Its in addition to worth cleaning the MAF sensor wires, as they can get coated past dirt greater than era which subsequently offsets the reading. Use some gain access to cleaner or brake cleaner to spray can onto the wires to separate the dirt upon no account be adjacent to the wires gone all as they are enormously fragile
I'm reviewing your question now, and will broadcast back like your answer ASAP. Rgds Greg. What malformation codes pull off you have. Does the engine govern considering the MAF disconnected. as soon as the loud hissing strong this could be your problem. This could be a large vacuum leak ,with the MAF joined it is on your own measuring the expose that is getting subsequent to the MAF, appropriately if the intake manifold is sucking in freshen the freshen to fuel ratio will be no question out and cause the engine to stal