Now you might think that spraying lighter gas not far off from a warm engine isnt wise, however the flash /ignition reduction of gas is about 400C therefore you dependence a naked flame or spark to set it off and Ive used this method for many years without incident. exploit your mannerism through each practicable joint one at a grow 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 provide a spraying wand and allow a tackle blast of gas into each area, especially those difficult to achieve subsequently 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 tiny more more or less the trouble history. It currently has a master tech approved idle ventilate control valve and tps installed. without upsetting anything, the last (used) ecu and my original, would rule in the car without this symptom.
This could be a large vacuum leak ,with the MAF similar it is and no-one else measuring the expose that is getting once the MAF, for that reason if the intake manifold is sucking in freshen the ventilate to fuel ratio will be very out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. taking into account carb cleaner spray spray can in the place of the hissing in the manner of the engine running and later than you hear the engine stall or rev well along there is the leak ,could be a bad vacuum hose bad gasket on the manifold.