Now you might think that spraying lighter gas with reference to a hot engine isnt wise, however the flash /ignition lessening of gas is virtually 400C appropriately you need a naked flame or spark to set it off and Ive used this method for many years without incident. perform your pretentiousness through each realizable joint one at a epoch 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 come up with the money for a spraying wand and permit a deliver blast of gas into each area, especially those difficult to reach like 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 practically the trouble history. It currently has a master tech attributed idle let breathe manage valve and tps installed. without upsetting anything, the last (used) ecu and my original, would rule in the car without this symptom.
as soon as I begin the car, the engine surges happening amid 1200 and 2000 rpm urge on and forth. I distorted the IAC and the TPS subsequently no amend in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to familiarize the idle promptness screw to lower the rpm and it would withhold for a while. Now, the engine is for ever and a day surging to the lessening where I cannot steer it for terrify of damage to the drive train. Any experienced solution?