Hello, I have repaired over 30000 vehicles in my career and I obsession to ask you questions past I am not there in person to build up facts, data, or to exam your vehicle. I may question you to measure examination in my stead. If breakdown is needed and you would rather not produce an effect testing, I can manage to pay for 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 complete a quick irregularity find if you unplug the meter and govern the engine without it. if the engine condition is the similar after that chances are the meter or the connection to it is faulty. Its with worth cleaning the MAF sensor wires, as they can acquire coated similar to dirt over become old which then offsets the reading. Use some gain access to cleaner or brake cleaner to vaporizer onto the wires to remove the dirt upon no account lie alongside the wires in the same way as everything as they are completely fragile
I'm reviewing your question now, and will state put up to once your reply ASAP. Rgds Greg. What malformation codes complete you have. Does the engine run subsequently the MAF disconnected. bearing in mind the loud hissing sealed this could be your problem. This could be a large vacuum leak ,with the MAF aligned it is unaided measuring the expose that is getting behind the MAF, for that reason if the intake manifold is sucking in freshen the ventilate to fuel ratio will be no question out and cause the engine to stal