Now you might think that spraying lighter gas roughly a hot engine isnt wise, however the flash /ignition tapering off of gas is approximately 400C so you habit a naked fire or spark to set it off and Ive used this method for many years without incident. show your pretension through each reachable joint one at a time 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 enough money a spraying wand and permit a focus on blast of gas into each area, especially those difficult to achieve later large implements.
Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me say you a little more roughly the trouble history. It currently has a master tech recognized idle freshen manage valve and tps installed. without disturbing anything, the last (used) ecu and my original, would control in the car without this symptom.
bearing in mind I start the car, the engine surges happening in the company of 1200 and 2000 rpm incite and forth. I misused the IAC and the TPS considering no correct 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 demean the rpm and it would support for a while. Now, the engine is for eternity surging to the point where I cannot drive it for fear of damage to the steer train. Any experienced solution?