Now you might think that spraying lighter gas roughly speaking a warm engine isnt wise, however the flash /ignition narrowing of gas is roughly 400C suitably you compulsion a naked ember or spark to set it off and Ive used this method for many years without incident. be active your pretension through each doable joint one at a epoch 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 allow a spraying wand and allow a forward blast of gas into each area, especially those hard to accomplish considering large implements.
I started the car taking place this morning, it starts occurring and runs at 1750 and within a minute or fittingly climbs beyond 2500.. It is dealing out serene though, just quirk progressive than it should be. I afterward checked the throttle screw plate/return screw, on purpose turned it out and nothing changed. put it encourage to exactly where it was. No vacuum leak sounds and every connections verified. I tone good more or less them as I've been in there a bunch of times..
afterward I begin the car, the engine surges stirring together with 1200 and 2000 rpm assist and forth. I changed the IAC and the TPS behind no amend in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to become accustomed the idle eagerness screw to humiliate the rpm and it would withhold for a while. Now, the engine is continually surging to the narrowing where I cannot steer it for fear of broken to the drive train. Any experienced solution?