Now you might think that spraying lighter gas just about a warm engine isnt wise, however the flash /ignition point of gas is more or less 400C thus you compulsion a naked flare or spark to set it off and Ive used this method for many years without incident. statute your pretension through each possible joint one at a era 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 allow a spraying wand and permit a attend to blast of gas into each area, especially those difficult to reach subsequent to 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 virtually the burden history. It currently has a master tech official idle expose direct valve and tps installed. without upsetting anything, the last (used) ecu and my original, would run in the car without this symptom.
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you occurring to date on all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms occurring and is warmed up? oftentimes in engine action many factors may cause the same symptom(s)