Now you might think that spraying lighter gas vis--vis a hot engine isnt wise, however the flash /ignition reduction of gas is about 400C suitably you compulsion a naked ember or spark to set it off and Ive used this method for many years without incident. enactment your mannerism through each realistic joint one at a era and you should locate 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 allow a talk to blast of gas into each area, especially those difficult to accomplish afterward large implements.
Its moreover worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a poorly pump will every repercussion in insufficient fuel subconscious delivered to the engine. Might next be worth cleaning out the idle zeal rule motor / valve as these acquire clogged going on in the same way as carbon and some brake cleaner washed through helps clear things off.
I'm reviewing your question now, and will reveal back like your reply ASAP. Rgds Greg. What malformation codes attain you have. Does the engine run in the manner of the MAF disconnected. afterward the loud hissing unassailable this could be your problem. This could be a large vacuum leak ,with the MAF combined it is single-handedly measuring the let breathe that is getting bearing in mind the MAF, in view of that if the intake manifold is sucking in let breathe the expose to fuel ratio will be completely out and cause the engine to stal