Now you might think that spraying lighter gas approximately a hot engine isnt wise, however the flash /ignition reduction of gas is virtually 400C so you infatuation a naked ember or spark to set it off and Ive used this method for many years without incident. put it on your habit through each viable joint one at a times and you should find it. I use a slightly flattened fragment of brake pipe and some rubber hose from the can of lighter gas to have enough money a spraying wand and permit a concentrate on blast of gas into each area, especially those difficult to achieve in the same way as 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 every repercussion in insufficient fuel beast delivered to the engine. Might next be worth cleaning out the idle eagerness direct motor / valve as these acquire clogged up subsequently carbon and some brake cleaner washed through helps forgive things off.
I'm reviewing your ask now, and will reveal back behind your respond ASAP. Rgds Greg. What oddity codes pull off you have. Does the engine run subsequently the MAF disconnected. taking into consideration the loud hissing sound this could be your problem. This could be a large vacuum leak ,with the MAF partnered it is only measuring the expose that is getting later the MAF, therefore if the intake manifold is sucking in let breathe the freshen to fuel ratio will be categorically out and cause the engine to stal