OBD-II code · Powertrain (generic, extended)
P24FD Particulate Filter A Incorrect
The ECM identifies the installed particulate filter A as the wrong part — backpressure signature, regeneration efficiency or coded part-number do not match the application. Common after a non-OEM aftermarket DPF or a wrong-application replacement.
Is it safe to drive with P24FD?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyIncorrect or non-OEM DPF installed
- PossibleCoding mismatch after part replacement
Symptoms
- Check engine light or DPF warning light on
- Power loss / limp mode
- Increased fuel consumption
- Failed forced regeneration attempts
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Likely to fail
- Parts involved
- Particulate Filter A
Related codes
- P2DCDParticulate Filter B Incorrect
- P24FAExhaust Aftertreatment Fuel Air Purge Valve Control Circuit Low
- P24FBExhaust Aftertreatment Fuel Air Purge Valve Control Circuit High
- P24FCParticulate Matter Sensor Heater Control Circuit Driver Current/Temperature Too High
- P24FESCR Catalyst Incorrect
- P24FFReductant Temperature Too High
- P2500Generator Lamp/L-Terminal Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.