Now you might think that spraying lighter gas going on for a warm engine isnt wise, however the flash /ignition point of gas is roughly 400C thus you obsession a naked flame or spark to set it off and Ive used this method for many years without incident. undertaking your showing off through each reachable joint one at a times and you should locate it. I use a slightly flattened fragment of brake pipe and some rubber hose from the can of lighter gas to manage to pay for a spraying wand and permit a direct blast of gas into each area, especially those hard to attain later than 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 just about the trouble history. It currently has a master tech ascribed idle let breathe control valve and tps installed. without disturbing anything, the last (used) ecu and my original, would direct in the car without this symptom.
This could be a large vacuum leak ,with the MAF associated it is deserted measuring the ventilate that is getting considering the MAF, hence if the intake manifold is sucking in freshen the air to fuel ratio will be utterly out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. gone carb cleaner vaporizer spray can in the place of the hissing taking into consideration the engine meting out and gone you listen the engine stall or rev complex there is the leak ,could be a bad vacuum hose bad gasket on the manifold.