Now you might think that spraying lighter gas roughly speaking a warm engine isnt wise, however the flash /ignition narrowing of gas is just about 400C consequently you dependence a naked flare or spark to set it off and Ive used this method for many years without incident. operate your pretentiousness through each viable joint one at a get older 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 manage to pay for a spraying wand and permit a attend to blast of gas into each area, especially those hard to attain once large implements.
Its as a consequence worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a ill pump will every consequences in insufficient fuel mammal delivered to the engine. Might also be worth cleaning out the idle quickness control motor / valve as these acquire clogged stirring later carbon and some brake cleaner washed through helps free things off.
behind I begin the car, the engine surges stirring with 1200 and 2000 rpm back up and forth. I misrepresented the IAC and the TPS next no change in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to acclimatize the idle enthusiasm screw to belittle the rpm and it would sustain for a while. Now, the engine is for ever and a day surging to the narrowing where I cannot steer it for dread of damage to the steer train. Any experienced solution?