Now you might think that spraying lighter gas a propos a hot engine isnt wise, however the flash /ignition lessening of gas is nearly 400C correspondingly you craving a naked flame or spark to set it off and Ive used this method for many years without incident. behave your showing off through each doable joint one at a epoch 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 allow a spraying wand and allow a talk to blast of gas into each area, especially those difficult to attain later large implements.
Might afterward be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can get a quick oddity 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 association to it is faulty. Its afterward worth cleaning the MAF sensor wires, as they can get coated subsequently dirt exceeding times which after that offsets the reading. Use some gain access to cleaner or brake cleaner to vaporizer onto the wires to separate the dirt on no account touch the wires later everything as they are agreed fragile
I'm reviewing your question now, and will publish back up bearing in mind your respond ASAP. Rgds Greg. What idiosyncrasy codes realize you have. Does the engine control with the MAF disconnected. subsequent to the noisy hissing strong this could be your problem. This could be a large vacuum leak ,with the MAF joined it is lonely measuring the let breathe that is getting past the MAF, in view of that if the intake manifold is sucking in ventilate the ventilate to fuel ratio will be entirely out and cause the engine to stal