Now you might think that spraying lighter gas not far off from a warm engine isnt wise, however the flash /ignition narrowing of gas is nearly 400C thus you need a naked blaze or spark to set it off and Ive used this method for many years without incident. undertaking your habit 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 allow a spraying wand and allow a take in hand blast of gas into each area, especially those hard to accomplish in the manner of large implements.
Might after that be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can reach a fast fault locate if you unplug the meter and run the engine without it. if the engine condition is the thesame then chances are the meter or the link to it is faulty. Its as a consequence worth cleaning the MAF sensor wires, as they can get coated in imitation of dirt greater than era which then offsets the reading. Use some gate cleaner or brake cleaner to vaporizer onto the wires to cut off the dirt upon no account touch the wires bearing in mind everything as they are unconditionally fragile
taking into account I begin the car, the engine surges in the works between 1200 and 2000 rpm put up to and forth. I misused the IAC and the TPS next no amend in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to acclimatize the idle enthusiasm screw to degrade the rpm and it would keep for a while. Now, the engine is for eternity surging to the narrowing where I cannot steer it for buzzer of damage to the drive train. Any experienced solution?