P0303 OBD2 Error Code - Cylinder 3 Misfire Detected
What does this error code mean?
Cylinder 3 Misfire Detected
Common symptoms
- Check engine light on
- Engine vibration at idle
- Loss of power
What causes it?
- Spark plug or coil fault
- Fuel system issue
- Ignition timing error
How to fix
- Check spark plugs and coils
- Test fuel pressure
- Diagnostic scan for code analysis
Is it safe to drive?
Short trips at low load are acceptable. Long journeys or heavy loads are not recommended; get a diagnosis as soon as possible.
Estimated repair cost
Repair costs vary by cause and vehicle. Have a technician diagnose the issue.
Expert opinion
The code alone does not identify the faulty part; vehicle and measurement can yield different results. Have OBD-II reading and necessary checks done at a qualified workshop.
For information only. Content on this site is for general guidance; it does not replace professional diagnosis or repair. Always consult a qualified technician before making decisions about your vehicle.