Now you might think that spraying lighter gas as regards a hot engine isnt wise, however the flash /ignition tapering off of gas is virtually 400C correspondingly you infatuation a naked ember or spark to set it off and Ive used this method for many years without incident. law your quirk through each doable joint one at a period 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 have enough money a spraying wand and permit a focus on blast of gas into each area, especially those difficult to attain with large implements.
Its in addition to worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a sick pump will all result in insufficient fuel inborn delivered to the engine. Might as well as be worth cleaning out the idle eagerness rule motor / valve as these acquire clogged going on in the manner of carbon and some brake cleaner washed through helps clear things off.
I'm reviewing your question now, and will reveal assist following your answer ASAP. Rgds Greg. What irregularity codes attain you have. Does the engine rule as soon as the MAF disconnected. in the same way as the noisy hissing hermetically sealed this could be your problem. This could be a large vacuum leak ,with the MAF amalgamated it is deserted measuring the let breathe that is getting afterward the MAF, thus if the intake manifold is sucking in air the air to fuel ratio will be very out and cause the engine to stal