P2003 – Diesel Particulate Filter Efficiency Below Threshold Bank 2
Description
The ECM detects that DPF efficiency on bank 2 is below the required threshold.
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Compare Diagnostic ScannersSymptoms
- Loss of power
- High fuel consumption
- Regeneration issues
- Check Engine light
Causes
- Clogged DPF
- Faulty differential pressure sensor
- Exhaust leaks
- Low exhaust temperature
Diagnosis
- Check DPF pressure readings
- Inspect exhaust leaks
- Verify sensor operation
- Check regeneration history
Repair
- Clean or replace DPF
- Replace pressure sensor
- Repair exhaust leaks
