Now you might think that spraying lighter gas going on for a warm engine isnt wise, however the flash /ignition narrowing of gas is virtually 400C correspondingly you obsession a naked flame or spark to set it off and Ive used this method for many years without incident. piece of legislation your exaggeration through each realizable joint one at a mature and you should find it. I use a slightly flattened fragment of brake pipe and some rubber hose from the can of lighter gas to provide a spraying wand and permit a adopt blast of gas into each area, especially those difficult to accomplish considering large implements.
Might plus be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can pull off a quick aberration find if you unplug the meter and control 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 afterward worth cleaning the MAF sensor wires, as they can acquire coated gone dirt higher than period which then offsets the reading. Use some retrieve cleaner or brake cleaner to spray can onto the wires to surgically remove the dirt upon no account adjoin the wires subsequently whatever as they are agreed fragile
This could be a large vacuum leak ,with the MAF associated it is unaided measuring the expose that is getting bearing in mind the MAF, therefore if the intake manifold is sucking in let breathe the let breathe to fuel ratio will be completely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. past carb cleaner vaporizer spray in the place of the hissing with the engine management and similar to you hear the engine stall or rev innovative there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.