Now you might think that spraying lighter gas roughly speaking a warm engine isnt wise, however the flash /ignition narrowing of gas is about 400C so you obsession a naked blaze or spark to set it off and Ive used this method for many years without incident. action your artifice through each viable joint one at a grow old 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 find the money for a spraying wand and permit a take up blast of gas into each area, especially those hard to attain subsequently large implements.
Might in addition to be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can accomplish a quick defect find if you unplug the meter and control the engine without it. if the engine condition is the same next chances are the meter or the link to it is faulty. Its plus worth cleaning the MAF sensor wires, as they can acquire coated as soon as dirt on top of time which subsequently offsets the reading. Use some entry cleaner or brake cleaner to spray onto the wires to cut off the dirt upon no account be next to the wires later whatever as they are utterly fragile
I don't have any check engine lights unless I unplug the MAF sensor. once the MAF is plugged in next the car will stall unless I put my foot on the accelerator. There is next an intermittent popping unquestionable coming at idle.