Now you might think that spraying lighter gas approaching a warm engine isnt wise, however the flash /ignition point of gas is nearly 400C correspondingly you compulsion a naked ember or spark to set it off and Ive used this method for many years without incident. measure your way through each doable joint one at a period 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 have the funds for a spraying wand and permit a deal with blast of gas into each area, especially those difficult to attain following large implements.
Its also 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 repercussion in insufficient fuel creature delivered to the engine. Might in addition to be worth cleaning out the idle keenness run motor / valve as these acquire clogged going on gone carbon and some brake cleaner washed through helps release things off.
next I start the car, the engine surges in the works between 1200 and 2000 rpm back up and forth. I misused the IAC and the TPS following no amend in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to adapt the idle enthusiasm screw to lower the rpm and it would keep for a while. Now, the engine is for all time surging to the dwindling where I cannot steer it for scare of damage to the drive train. Any experienced solution?