OBD-II code · Powertrain (generic)
P04CF EGR Temperature Sensor C Circuit Range or Performance
Same as P04CE with the signal in plausible range yet not matching the engine model - typically sensor drift or a slow response after engine warm-up.
Is it safe to drive with P04CF?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor element drifted
Symptoms
- Check engine light on
- Pinging or knocking under load
- Power loss and hesitation
- Possible rough idle
- Failed emissions inspection (NOx)
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.6–1.6 h
- Emissions test
- Likely to fail
- Parts involved
- Egr Temperature Sensor C
Related codes
- P04E6EGR Temperature Sensor D Circuit Range or Performance
- P04CCFuel Fill Door Open Request Sensor or Switch Circuit Intermittent or Erratic
- P04CDFuel Fill Door Open Request Sensor or Switch Stuck On
- P04CEEGR Temperature Sensor C Circuit
- P04D0EGR Temperature Sensor C Circuit Low
- P04D1EGR Temperature Sensor C Circuit High
- P04D2EGR Temperature Sensor C Circuit Intermittent or Erratic
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.