Now you might think that spraying lighter gas as regards a hot engine isnt wise, however the flash /ignition lessening of gas is roughly 400C consequently you habit a naked flame or spark to set it off and Ive used this method for many years without incident. action your artifice through each doable joint one at a period and you should find it. I use a slightly flattened piece of brake pipe and some rubber hose from the can of lighter gas to present a spraying wand and allow a take up blast of gas into each area, especially those hard to attain later than 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 not at your best pump will every consequences in insufficient fuel innate delivered to the engine. Might also be worth cleaning out the idle enthusiasm govern motor / valve as these acquire clogged happening taking into account carbon and some brake cleaner washed through helps forgive things off.
I don't have any check engine lights unless I unplug the MAF sensor. considering the MAF is plugged in next the car will stall unless I put my foot upon the accelerator. There is then an intermittent popping sound coming at idle.