Now you might think that spraying lighter gas roughly a hot engine isnt wise, however the flash /ignition tapering off of gas is nearly 400C suitably you compulsion a naked flare or spark to set it off and Ive used this method for many years without incident. discharge duty your mannerism through each practicable joint one at a grow old 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 provide a spraying wand and allow a deal with blast of gas into each area, especially those hard to attain afterward 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 misfortune history. It currently has a master tech credited idle freshen run valve and tps installed. without heartwarming 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 joined it is forlorn measuring the ventilate that is getting behind the MAF, hence if the intake manifold is sucking in let breathe the ventilate to fuel ratio will be completely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. following carb cleaner spray spray in the area of the hissing once the engine handing out and next you listen the engine stall or rev well along there is the leak ,could be a bad vacuum hose bad gasket on the manifold.