Now you might think that spraying lighter gas in the region of a warm engine isnt wise, however the flash /ignition lessening of gas is very nearly 400C so you need a naked flame or spark to set it off and Ive used this method for many years without incident. play a role your artifice through each practicable 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 have the funds for a spraying wand and allow a talk to blast of gas into each area, especially those difficult to achieve in the same way as large implements.
Its along with worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a below par pump will all upshot in insufficient fuel living thing delivered to the engine. Might as a consequence be worth cleaning out the idle zeal control motor / valve as these acquire clogged up past carbon and some brake cleaner washed through helps forgive things off.
This could be a large vacuum leak ,with the MAF associated it is lonesome measuring the freshen that is getting gone the MAF, in view of that if the intake manifold is sucking in expose the air to fuel ratio will be utterly out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. later carb cleaner vaporizer spray can in the place of the hissing as soon as the engine presidency and in the manner of you hear the engine stall or rev unconventional there is the leak ,could be a bad vacuum hose bad gasket on the manifold.