OBD-II code · Powertrain (generic, extended)
P24AF Particulate Matter Sensor Circuit Range or Performance
Same as P24AE with the signal in plausible range yet not matching the engine model.
Is it safe to drive with P24AF?
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
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–3 h
- Emissions test
- Likely to fail
- Parts involved
- Particulate Matter Sensor
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.