OBD-II code · Powertrain (generic, extended)
P214C SCR NOx Catalyst Outlet Temperature Too High
SCR NOx Catalyst Outlet Temperature Too High: the component is overheating, typically from extended load or slip.
Is it safe to drive with P214C?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelySustained over-temperature event
Symptoms
- Check engine light on
- Failed emissions inspection
- Possibly slightly increased fuel consumption
- Sulfur (rotten egg) smell from exhaust under load
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1.5–8 h
- Emissions test
- Likely to fail
- Parts involved
- Scr Catalyst, Exhaust Temperature Sensor
Related codes
- P214ASCR NOx Catalyst Inlet Temperature Too High
- P2149Fuel Injector Group B Supply Voltage Circuit/Open
- P214BSCR NOx Catalyst Inlet Temperature Too High During Particulate Filter Regeneration
- P214DSCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration
- P214EReductant Pump A Current Too High
- P214FReductant Heater A Current Too High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.