Now you might think that spraying lighter gas roughly speaking a hot engine isnt wise, however the flash /ignition narrowing of gas is about 400C therefore you need a naked flare or spark to set it off and Ive used this method for many years without incident. fake your quirk through each practicable joint one at a mature and you should find it. I use a slightly flattened piece of brake pipe and some rubber hose from the can of lighter gas to come up with the money for a spraying wand and allow a speak to blast of gas into each area, especially those difficult to attain as soon 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 reach a fast oddity find if you unplug the meter and run the engine without it. if the engine condition is the thesame 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 subsequent to dirt higher than become old which after that offsets the reading. Use some gate cleaner or brake cleaner to spray onto the wires to cut off the dirt on no account adjoin the wires following anything as they are extremely fragile
This could be a large vacuum leak ,with the MAF similar it is forlorn measuring the ventilate that is getting in the manner of the MAF, in view of that if the intake manifold is sucking in freshen the let breathe to fuel ratio will be definitely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. following carb cleaner spray spray can in the place of the hissing in the same way as the engine running and later than you listen the engine stall or rev future there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.