There are multiple TSBs (Technical Service Bulletins) for the issue Apparently there's one for 21 36 that instructs the tech to replace the spark plugs That's what they did on my wife's 21 Grand Cherokee and the misfire went awayYou changed just the 1 spark plug? Code P0300 P0301 P0302 P0303 P0304 Misfire Dodge Dart Chrysler 0 Jeep Cherokee Renegade By dubaikhalifas On Share Code P0300 P0301 P0302 P0303 P0304 Misfire Dodge Dart Chrysler 0 Jeep Cherokee Renegade
Help Please P0300 Kicking My Butt Jeep Wrangler Forum