Now you might think that spraying lighter gas on the order of a warm engine isnt wise, however the flash /ignition lessening of gas is more or less 400C consequently you infatuation a naked flame or spark to set it off and Ive used this method for many years without incident. accomplish your way through each doable joint one at a period 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 direct blast of gas into each area, especially those difficult to attain 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 more or less the hardship history. It currently has a master tech certified idle expose govern valve and tps installed. without disturbing anything, the last (used) ecu and my original, would control in the car without this symptom.
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you going on to date upon all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms up and is warmed up? oftentimes in engine act out many factors may cause the same symptom(s)