Now you might think that spraying lighter gas almost a warm engine isnt wise, however the flash /ignition dwindling of gas is not quite 400C in view of that you infatuation a naked ember or spark to set it off and Ive used this method for many years without incident. produce a result your pretension through each possible joint one at a time and you should locate it. I use a slightly flattened fragment of brake pipe and some rubber hose from the can of lighter gas to find the money for a spraying wand and permit a direct blast of gas into each area, especially those hard to accomplish next large implements.
Might next be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can get a quick deviation locate if you unplug the meter and manage the engine without it. if the engine condition is the thesame later chances are the meter or the attachment to it is faulty. Its with worth cleaning the MAF sensor wires, as they can get coated in the same way as dirt more than times which after that offsets the reading. Use some contact cleaner or brake cleaner to spray can onto the wires to sever the dirt on no account touch the wires following anything as they are definitely fragile
subsequently I start the car, the engine surges in the works amid 1200 and 2000 rpm encourage and forth. I misrepresented the IAC and the TPS when no fiddle with in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to adjust the idle eagerness screw to lower the rpm and it would keep for a while. Now, the engine is every time surging to the narrowing where I cannot drive it for panic of broken to the steer train. Any experienced solution?