Now you might think that spraying lighter gas as regards a hot engine isnt wise, however the flash /ignition tapering off of gas is about 400C correspondingly you need a naked ember or spark to set it off and Ive used this method for many years without incident. ham it up your showing off 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 offer a spraying wand and allow a focus on blast of gas into each area, especially those difficult to accomplish next large implements.
Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me tell you a tiny more practically the misfortune history. It currently has a master tech certified idle ventilate manage valve and tps installed. without moving anything, the last (used) ecu and my original, would run in the car without this symptom.
like I start the car, the engine surges stirring together with 1200 and 2000 rpm urge on and forth. I untouched the IAC and the TPS in imitation of no amend in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to adapt the idle keenness screw to degrade the rpm and it would support for a while. Now, the engine is constantly surging to the lessening where I cannot steer it for danger signal of damage to the drive train. Any experienced solution?