A P0420 diagnostic code on your 2016 Toyota Camry indicates that the catalytic converter efficiency has fallen below acceptable levels. At 8+ years old, natural wear and aging can affect converter performance.
2016 Camry Engine Options
- 2.5L 4-cylinder: 178 hp
- 2.5L Hybrid: Combined 200 hp
- 3.5L V6: 268 hp (Bank 1 specific)
Common Causes
- Converter Aging: Normal wear at 8+ years
- O2 Sensor Wear: Aging sensors causing false codes
- Exhaust Leaks: Developed over time
- Past Issues: Accumulated damage from misfires or fuel problems
- Contamination: Oil or coolant contamination
Warranty Note
A 2016 Camry is likely beyond the 8-year emissions warranty. Check purchase date to confirm.