Now you might think that spraying lighter gas something like a hot engine isnt wise, however the flash /ignition narrowing of gas is not quite 400C hence you compulsion a naked flame or spark to set it off and Ive used this method for many years without incident. decree your quirk through each realistic joint one at a era 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 present a spraying wand and allow a tackle blast of gas into each area, especially those difficult to accomplish like 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 problem history. It currently has a master tech approved idle expose manage valve and tps installed. without moving anything, the last (used) ecu and my original, would control in the car without this symptom.
This could be a large vacuum leak ,with the MAF connected it is and no-one else measuring the let breathe that is getting following the MAF, for that reason if the intake manifold is sucking in freshen the expose 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. when carb cleaner spray can spray can in the place of the hissing in imitation of the engine admin and afterward you hear the engine stall or rev well along there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.