DPF Differential Pressure Sensor Circuit Intermittent
The DPF differential-pressure sensor delivers an intermittent signal — usually a marginal connector or a chafed wiring section that breaks contact during temperature or vibration.
Affected components
- Dpf differential pressure sensor
- Dpf pressure sensor wiring
Common causes
- High likelihood: Connector intermittent
- Medium likelihood: Wiring chafed against bracket
- Low likelihood: Harness routed against vibrating component
Possible symptoms
- Check engine light or DPF warning light on
- Power loss / limp mode
- Increased fuel consumption
- Failed forced regeneration attempts
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.