When your “Check Engine” light is flashing, you can rest assured you’re never far from expert care at Firestone Complete Auto Care. At our 1,700+ locations we can help with everything from emissions diagnostics to car engine repairs, part replacement to general engine maintenance. Our engine services are thorough—our technicians Among the findings of the study were the top five most common repairs you can avoid through proper maintenance. 1. Engine Misfire. Each spark-plug on your car is electrically timed to fire at a A: You can use an OBD II scanner to clear P0300 in the Volkswagen CC. You have to fix the root cause of P0300 in your car. Otherwise, when you clear the code, it’ll come right back. P0300 is a generic OBDII code that can occur with the Volkswagen CC. This code indicates that your car's engine is misfiring and can be a drivability threat. P0308 definition: Cylinder 8 misfire detected. Issue Severity: SEVERE – Stop driving immediately. Repair Urgency: Fix this code immediately (same day if possible) to avoid ignition failure, catalytic converter damage, and dangerous conditions. Diagnosis: A multiple misfire can be caused by anything from faulty spark plugs to low engine The P0301 code means that cylinder 1 has a misfire and isn't burning fuel properly. Bearing in mind that you need air, fuel and spark for combustion, the cause of a P0301 code could come from a few different sources. In any event, a P0301 code is serious and shouldn't be put off. 2. Your engine misfires and shakes: If a MAP sensor reports a false high pressure reading, the engine’s computer will signal for more fuel. This results in a rich mixture, which can foul the spark plugs and cause a cylinder not to fire. A misfiring engine will shake and transmit that motion into the cabin of the vehicle. 2. Misfiring Engine. If an ignition coil is not working properly, your engine will likely misfire. A misfiring engine results in a jerking or sputtering feel when you are moving at normal speeds. When you stop, a misfire from a bad ignition coil may cause your vehicle to run roughly, vibrate or shake. 3. Ignition. A common instigator of a misfire in a gasoline engine is no spark jumping the gap of a spark plug to ignite the air/fuel mixture, i.e., nothing out of the primer at the base of a bullet So for well over a year I have been fighting a periodic cylinder 7 misfire. The light will flash under a load or accelerating at highway speeds. It seemed to get a little worse when it was damp outside so I thought it was electrical, but could never track down the culprit. During all of this time, I had replaced plugs, wired, coil packs, a fuel If you have an engine misfire, get it looked at ASAP, you don't raw fuel during into the exhaust clogging up your catalytic convertors. Diagnosis is usually around $80 for a mechanic to do it, then the cost of replacing the spark plugs or coil. Add another couple hundred. B26EO.