Now you might think that spraying lighter gas with reference to a warm engine isnt wise, however the flash /ignition lessening of gas is more or less 400C so you obsession a naked flame or spark to set it off and Ive used this method for many years without incident. exploit your artifice through each possible joint one at a epoch 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 find the money for a spraying wand and allow a dispatch blast of gas into each area, especially those difficult to achieve taking into account large implements.
Its plus worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a poorly pump will every outcome in insufficient fuel swine delivered to the engine. Might after that be worth cleaning out the idle swiftness direct motor / valve as these acquire clogged happening bearing in mind carbon and some brake cleaner washed through helps free things off.
afterward I start the car, the engine surges taking place in the company of 1200 and 2000 rpm incite and forth. I misused the IAC and the TPS in the same way as no bend in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to get used to the idle zeal screw to subjugate the rpm and it would support for a while. Now, the engine is at all times surging to the tapering off where I cannot steer it for terror of broken to the drive train. Any experienced solution?