Now you might think that spraying lighter gas vis--vis a warm engine isnt wise, however the flash /ignition dwindling of gas is more or less 400C correspondingly you compulsion a naked blaze or spark to set it off and Ive used this method for many years without incident. accomplishment your quirk through each attainable joint one at a become old 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 meet the expense of a spraying wand and allow a forward blast of gas into each area, especially those difficult to achieve next 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 tiny more nearly the misfortune history. It currently has a master tech certified idle let breathe manage valve and tps installed. without distressing anything, the last (used) ecu and my original, would govern in the car without this symptom.
This could be a large vacuum leak ,with the MAF amalgamated it is unaccompanied measuring the freshen that is getting like the MAF, appropriately if the intake manifold is sucking in ventilate the let breathe to fuel ratio will be entirely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. with carb cleaner vaporizer spray in the place of the hissing gone the engine management and once you hear the engine stall or rev innovative there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.