Now you might think that spraying lighter gas with reference to a hot engine isnt wise, however the flash /ignition lessening of gas is approximately 400C in view of that you habit a naked blaze or spark to set it off and Ive used this method for many years without incident. work your quirk through each reachable joint one at a time 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 allow a adopt blast of gas into each area, especially those difficult 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 say you a little more about the burden history. It currently has a master tech ascribed idle air direct valve and tps installed. without heartwarming anything, the last (used) ecu and my original, would run in the car without this symptom.
This could be a large vacuum leak ,with the MAF united it is only measuring the let breathe that is getting afterward the MAF, in view of that if the intake manifold is sucking in ventilate the ventilate 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. like carb cleaner spray spray in the area of the hissing past the engine organization and with you listen the engine stall or rev sophisticated there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.