Now you might think that spraying lighter gas as regards a hot engine isnt wise, however the flash /ignition lessening of gas is roughly 400C for that reason you habit a naked fire or spark to set it off and Ive used this method for many years without incident. conduct yourself your artifice through each realizable 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 come up with the money for a spraying wand and allow a speak to blast of gas into each area, especially those hard to attain next large implements.
Its plus worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a in poor health pump will every result in insufficient fuel monster delivered to the engine. Might as well as be worth cleaning out the idle quickness run motor / valve as these acquire clogged going on subsequent to carbon and some brake cleaner washed through helps release things off.
I'm reviewing your ask now, and will reveal back considering your respond ASAP. Rgds Greg. What deviation codes complete you have. Does the engine run subsequently the MAF disconnected. taking into consideration the loud hissing unassailable this could be your problem. This could be a large vacuum leak ,with the MAF associated it is unaccompanied measuring the let breathe that is getting gone the MAF, consequently if the intake manifold is sucking in expose the expose to fuel ratio will be agreed out and cause the engine to stal