Now you might think that spraying lighter gas almost a hot engine isnt wise, however the flash /ignition lessening of gas is approximately 400C so you obsession a naked flame or spark to set it off and Ive used this method for many years without incident. perform your exaggeration through each realizable joint one at a mature 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 direct blast of gas into each area, especially those difficult to accomplish taking into account 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 little more about the trouble history. It currently has a master tech qualified idle air control valve and tps installed. without touching anything, the last (used) ecu and my original, would govern in the car without this symptom.
bearing in mind I begin the car, the engine surges occurring between 1200 and 2000 rpm put up to and forth. I misused the IAC and the TPS subsequently no fiddle with in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to adapt the idle enthusiasm screw to lower the rpm and it would keep for a while. Now, the engine is for ever and a day surging to the narrowing where I cannot drive it for alarm clock of broken to the steer train. Any experienced solution?