Particulate Filter Differential Pressure Too Low Bank 2

Check these first

• Cracked or failed bank 2 DPF allowing pressure to bypass
• Failed differential pressure sensor on bank 2
• Leaking exhaust pipe ahead of the bank 2 sensor
• Disconnected or blocked pressure hose at the bank 2 DPF

What to do next

1. Read bank 2 DPF differential pressure live data
2. Inspect the bank 2 pressure hoses for cracks or blockage
3. Check the exhaust for leaks ahead of the bank 2 DPF
4. Compare the differential pressure sensor against a known-good reading
5. Replace the bank 2 differential pressure sensor if out of range
6. Clear the code and retest

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