Now you might think that spraying lighter gas approaching a warm engine isnt wise, however the flash /ignition dwindling of gas is virtually 400C in view of that you infatuation a naked ember or spark to set it off and Ive used this method for many years without incident. accomplishment your way through each realizable joint one at a epoch 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 pay for a spraying wand and allow a tackle blast of gas into each area, especially those hard to accomplish with large implements.
Its after that 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 all consequences in insufficient fuel instinctive delivered to the engine. Might after that be worth cleaning out the idle eagerness manage motor / valve as these get clogged stirring once carbon and some brake cleaner washed through helps clear things off.
This could be a large vacuum leak ,with the MAF aligned it is unaccompanied measuring the freshen that is getting taking into consideration the MAF, consequently if the intake manifold is sucking in freshen the air to fuel ratio will be categorically out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. like carb cleaner vaporizer spray in the place of the hissing considering the engine management and following you listen the engine stall or rev superior there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.