Now you might think that spraying lighter gas roughly a hot engine isnt wise, however the flash /ignition tapering off of gas is roughly 400C in view of that you infatuation a naked flame or spark to set it off and Ive used this method for many years without incident. performance your way through each feasible joint one at a era 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 find the money for a spraying wand and permit a deal with blast of gas into each area, especially those difficult to achieve bearing in mind 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 more or less the difficulty history. It currently has a master tech qualified idle let breathe control valve and tps installed. without distressing anything, the last (used) ecu and my original, would run in the car without this symptom.
as soon as I start the car, the engine surges stirring amongst 1200 and 2000 rpm back up and forth. I misused the IAC and the TPS in the manner of no fine-tune 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 lower the rpm and it would maintain for a while. Now, the engine is permanently surging to the narrowing where I cannot drive it for bell of broken to the steer train. Any experienced solution?