Now you might think that spraying lighter gas with reference to a hot engine isnt wise, however the flash /ignition point of gas is approximately 400C as a result you need a naked flare or spark to set it off and Ive used this method for many years without incident. fake your showing off 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 allow a spraying wand and allow a deliver blast of gas into each area, especially those difficult to reach subsequent to large implements.
Might furthermore be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can reach a quick defect find 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 attachment to it is faulty. Its furthermore worth cleaning the MAF sensor wires, as they can get coated once dirt exceeding get older which then offsets the reading. Use some gate cleaner or brake cleaner to vaporizer onto the wires to sever the dirt upon no account lie alongside the wires following everything as they are no question fragile
I'm reviewing your ask now, and will read out assist once your respond ASAP. Rgds Greg. What malfunction codes pull off you have. Does the engine direct in imitation of the MAF disconnected. later than the loud hissing solid this could be your problem. This could be a large vacuum leak ,with the MAF joined it is and no-one else measuring the freshen that is getting subsequent to the MAF, therefore if the intake manifold is sucking in freshen the let breathe to fuel ratio will be completely out and cause the engine to stal