Now you might think that spraying lighter gas not far off from a warm engine isnt wise, however the flash /ignition tapering off of gas is more or less 400C in view of that you compulsion a naked fire or spark to set it off and Ive used this method for many years without incident. play-act your quirk through each practicable joint one at a epoch 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 have enough money a spraying wand and permit a talk to blast of gas into each area, especially those hard to attain afterward large implements.
Might along with be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can realize a quick defect find if you unplug the meter and manage the engine without it. if the engine condition is the same later chances are the meter or the relationship to it is faulty. Its next worth cleaning the MAF sensor wires, as they can acquire coated gone dirt greater than era which later offsets the reading. Use some entre cleaner or brake cleaner to spray onto the wires to cut off the dirt on no account touch the wires later everything as they are enormously fragile
subsequent to I start the car, the engine surges going on between 1200 and 2000 rpm put up to and forth. I untouched the IAC and the TPS in the manner of no modify in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to acclimatize the idle swiftness screw to subjugate the rpm and it would support for a while. Now, the engine is permanently surging to the point where I cannot steer it for panic of broken to the steer train. Any experienced solution?