Jeep Wrangler Jk Why Is My Engine Misfiring Jk Forum
Jeep P0300 Causes Multiple misfires can be caused by many reasons from a faulty ignition system, fuel system, or internal engine failure The most common reason for this to happen is faulty or wornout spark plug coil packs, especially if it's been a while since you had a tuneup Faulty or worn spark plugs and/or spark plug wires Registered Joined 537 Posts #4 P0300 is a Radnom/multiple misfire Maybe a CKP sensor intermittantly faulty?