Now you might think that spraying lighter gas in relation to a hot engine isnt wise, however the flash /ignition lessening of gas is approximately 400C therefore you habit a naked ember or spark to set it off and Ive used this method for many years without incident. produce an effect your mannerism through each attainable 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 give a spraying wand and allow a forward blast of gas into each area, especially those hard to attain as soon as 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 nearly the hardship history. It currently has a master tech official idle let breathe direct valve and tps installed. without moving anything, the last (used) ecu and my original, would direct in the car without this symptom.
in the manner of I start the car, the engine surges occurring in the middle of 1200 and 2000 rpm assist and forth. I untouched the IAC and the TPS gone no alter in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to become accustomed the idle swiftness screw to subjugate the rpm and it would sustain for a while. Now, the engine is continually surging to the reduction where I cannot steer it for distress signal of broken to the drive train. Any experienced solution?