Powertrain
generic / SAE
P246D
Particulate Filter Pressure Sensor A and B Correlation
The two DPF differential pressure sensors A and B disagree by more than the diagnostic tolerance - one of them has drifted.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number4 / 6D
Possible causes
- One sensor has drifted high
Symptoms
- Check engine light or DPF warning light on
- Power loss / limp mode
- Increased fuel consumption
- Failed forced regeneration attempts
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 120–400 €
- Estimated time: 0.6–1.8 h
- Component: dpf pressure sensor a
- Component: dpf pressure sensor b
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012