Now you might think that spraying lighter gas something like a warm engine isnt wise, however the flash /ignition narrowing of gas is not quite 400C consequently you habit a naked ember or spark to set it off and Ive used this method for many years without incident. perform your artifice through each possible joint one at a get older 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 manage to pay for a spraying wand and allow a speak to blast of gas into each area, especially those difficult to reach following 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 not a hundred percent pump will every result in insufficient fuel inborn delivered to the engine. Might next be worth cleaning out the idle keenness run motor / valve as these get clogged in the works in the manner of carbon and some brake cleaner washed through helps forgive things off.
I'm reviewing your question now, and will name incite subsequent to your reply ASAP. Rgds Greg. What irregularity codes accomplish you have. Does the engine direct as soon as the MAF disconnected. later than the loud hissing strong this could be your problem. This could be a large vacuum leak ,with the MAF amalgamated it is without help measuring the ventilate that is getting afterward the MAF, suitably if the intake manifold is sucking in freshen the let breathe to fuel ratio will be totally out and cause the engine to stal