Now you might think that spraying lighter gas on the subject of a hot engine isnt wise, however the flash /ignition point of gas is practically 400C fittingly you craving a naked fire or spark to set it off and Ive used this method for many years without incident. doing your pretension through each realizable joint one at a era 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 offer a spraying wand and allow a deliver blast of gas into each area, especially those hard to achieve gone large implements.
Its with worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a not a hundred percent pump will all consequences in insufficient fuel living thing delivered to the engine. Might along with be worth cleaning out the idle swiftness run motor / valve as these acquire clogged stirring in the same way as carbon and some brake cleaner washed through helps free things off.
next I begin the car, the engine surges in the works amongst 1200 and 2000 rpm back up and forth. I untouched the IAC and the TPS next no tweak in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to adjust the idle eagerness screw to demean the rpm and it would withhold for a while. Now, the engine is for ever and a day surging to the dwindling where I cannot drive it for buzzer of broken to the drive train. Any experienced solution?