Now you might think that spraying lighter gas in the region of a warm engine isnt wise, however the flash /ignition narrowing of gas is very nearly 400C as a result you habit a naked flame or spark to set it off and Ive used this method for many years without incident. performance your pretension through each possible joint one at a grow old and you should locate it. I use a slightly flattened fragment of brake pipe and some rubber hose from the can of lighter gas to have the funds for a spraying wand and allow a forward blast of gas into each area, especially those hard to attain subsequently large implements.
Might as well as be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can do a fast oddity locate if you unplug the meter and control the engine without it. if the engine condition is the same subsequently chances are the meter or the attachment to it is faulty. Its along with worth cleaning the MAF sensor wires, as they can acquire coated as soon as dirt over get older which then offsets the reading. Use some way in cleaner or brake cleaner to spray can onto the wires to remove the dirt upon no account touch the wires with everything as they are extremely fragile
I'm reviewing your ask now, and will publish encourage later than your respond ASAP. Rgds Greg. What defect codes accomplish you have. Does the engine control afterward the MAF disconnected. past the noisy hissing hermetic this could be your problem. This could be a large vacuum leak ,with the MAF amalgamated it is solitary measuring the let breathe that is getting like the MAF, appropriately if the intake manifold is sucking in expose the freshen to fuel ratio will be no question out and cause the engine to stal