Symptoms:
- Harder to start
- Engine may stumble or hesitate or not start at all
- Eggy smell
Causes:
- Faulty spark plugs or wires
- Faulty coil pack
- Faulty oxygen sensor(s)
- Faulty fuel injector
- Burned exhaust valve
- Faulty catalyst
- Stuck/blocked/leaking EGR Valve/ Passages
- Faulty camshaft position sensor
- Low fuel
Possible solutions:
- Reset the code and see if it comes back
- Check all wiring and connectors that lead to the cylinders
- Replace ignition components (spark plugs, spark plug wires, coil pack)
- Check the fuel injectors
- Smell egg? Replace the Catalytic Converter