Now you might think that spraying lighter gas concerning a hot engine isnt wise, however the flash /ignition dwindling of gas is about 400C so you need a naked flare or spark to set it off and Ive used this method for many years without incident. sham your way through each possible joint one at a time 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 present a spraying wand and allow a dispatch blast of gas into each area, especially those difficult to reach taking into account large implements.
Its as well as worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a not a hundred percent pump will every outcome in insufficient fuel visceral delivered to the engine. Might as a consequence be worth cleaning out the idle speed rule motor / valve as these get clogged going on subsequently carbon and some brake cleaner washed through helps clear things off.
I don't have any check engine lights unless I unplug the MAF sensor. taking into account the MAF is plugged in next the car will stall unless I put my foot on the accelerator. There is moreover an intermittent popping unassailable coming at idle.