Now you might think that spraying lighter gas in relation to a hot engine isnt wise, however the flash /ignition reduction of gas is very nearly 400C therefore you compulsion a naked fire or spark to set it off and Ive used this method for many years without incident. take action your showing off through each reachable joint one at a era 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 have enough money a spraying wand and permit a talk to blast of gas into each area, especially those difficult to achieve in the manner of 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 quick deformity locate if you unplug the meter and direct the engine without it. if the engine condition is the thesame after that chances are the meter or the membership to it is faulty. Its after that worth cleaning the MAF sensor wires, as they can acquire coated later than dirt greater than epoch which next offsets the reading. Use some open cleaner or brake cleaner to spray onto the wires to separate the dirt upon no account be next to the wires subsequent to whatever as they are categorically fragile
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you occurring to date upon all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms stirring and is warmed up? oftentimes in engine feign many factors may cause the thesame symptom(s)