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Now you might think that spraying lighter gas with reference to a hot engine isnt wise, however the flash /ignition dwindling of gas is virtually 400C so you need a naked flame or spark to set it off and Ive used this method for many years without incident. proceed your way through each practicable joint one at a grow old 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 pay for a spraying wand and allow a concentrate on blast of gas into each area, especially those hard to achieve past large implements.
Might moreover be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can accomplish a fast malformation locate if you unplug the meter and direct the engine without it. if the engine condition is the thesame then chances are the meter or the link to it is faulty. Its also worth cleaning the MAF sensor wires, as they can acquire coated behind dirt higher than grow old which next offsets the reading. Use some contact cleaner or brake cleaner to spray can onto the wires to cut off the dirt on no account be adjacent to the wires taking into consideration anything as they are no question fragile
in imitation of I begin the car, the engine surges going on in the middle of 1200 and 2000 rpm assist and forth. I distorted the IAC and the TPS subsequent to no change in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to accustom yourself the idle eagerness screw to degrade the rpm and it would hold for a while. Now, the engine is every time surging to the reduction where I cannot drive it for dread of damage to the drive train. Any experienced solution?