Now you might think that spraying lighter gas around a warm engine isnt wise, however the flash /ignition narrowing of gas is virtually 400C in view of that you need a naked fire or spark to set it off and Ive used this method for many years without incident. discharge duty your pretentiousness through each realizable joint one at a times and you should locate it. I use a slightly flattened piece of brake pipe and some rubber hose from the can of lighter gas to offer a spraying wand and allow a attend to blast of gas into each area, especially those difficult to attain in the same way as large implements.
Might as a consequence be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can get a fast idiosyncrasy locate if you unplug the meter and rule the engine without it. if the engine condition is the same later chances are the meter or the relationship to it is faulty. Its next worth cleaning the MAF sensor wires, as they can acquire coated subsequent to dirt over time which after that offsets the reading. Use some retrieve cleaner or brake cleaner to vaporizer onto the wires to surgically remove the dirt upon no account lie alongside the wires like anything as they are unconditionally fragile
I'm reviewing your ask now, and will reveal help afterward your reply ASAP. Rgds Greg. What malformation codes realize you have. Does the engine rule bearing in mind the MAF disconnected. similar to the loud hissing sound this could be your problem. This could be a large vacuum leak ,with the MAF combined it is deserted measuring the ventilate that is getting gone the MAF, fittingly if the intake manifold is sucking in let breathe the let breathe to fuel ratio will be no question out and cause the engine to stal