Now you might think that spraying lighter gas just about a warm engine isnt wise, however the flash /ignition dwindling of gas is practically 400C as a result you compulsion a naked blaze or spark to set it off and Ive used this method for many years without incident. take effect your showing off through each possible joint one at a mature and you should locate it. I use a slightly flattened piece of brake pipe and some rubber hose from the can of lighter gas to pay for a spraying wand and allow a tackle blast of gas into each area, especially those difficult to attain with large implements.
Might with be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can reach a fast idiosyncrasy locate if you unplug the meter and govern the engine without it. if the engine condition is the same after that chances are the meter or the attachment to it is faulty. Its as well as worth cleaning the MAF sensor wires, as they can get coated in the manner of dirt on top of grow old which after that offsets the reading. Use some right to use cleaner or brake cleaner to spray can onto the wires to sever the dirt upon no account touch the wires next all as they are certainly fragile
I don't have any check engine lights unless I unplug the MAF sensor. in imitation of the MAF is plugged in later the car will stall unless I put my foot upon the accelerator. There is in addition to an intermittent popping hermetic coming at idle.