Now you might think that spraying lighter gas re a hot engine isnt wise, however the flash /ignition lessening of gas is just about 400C fittingly you compulsion a naked flare or spark to set it off and Ive used this method for many years without incident. act out your exaggeration through each practicable 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 present a spraying wand and permit a direct blast of gas into each area, especially those difficult to accomplish taking into consideration 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 burden history. It currently has a master tech official idle air govern valve and tps installed. without touching anything, the last (used) ecu and my original, would manage 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 on every maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms taking place and is warmed up? oftentimes in engine perform many factors may cause the same symptom(s)