Hey guys my g back fires, goes slow when you step on it and smells like gas so I assumed it had a misfire, scanned it code came up as random misfire (p0300) does not say what cylinder is misfiring I know this code could mean a lot of things, I’ve changed all spark plugs, if tested all coils, I’ve checked for vacuum leaks, valve cover does not leak, MAF sensor is good, fuel injectors fuel filter etc.. are all good. What else should I look for?