P0303 OBD II Trouble Code Cylinder 3 Three Misfire Detected
Symptoms of P0303 OBD II Trouble Code
- the engine may be harder to start
- the engine may stumble / stumble, and/or hesitate
- other symptoms may also be present
Common Causes of P0303 OBD II Trouble Code
- Faulty spark plug or wire
- Faulty coil (pack)
- Faulty oxygen sensor(s)
- Faulty fuel injector
- Burned exhaust valve
- Faulty catalytic converter(s)
- Running out of fuel
- Poor compression
- Defective computer