Particulate Filter Regeneration Frequency Bank 1

Check these first

• Regenerations triggering too often on the bank 1 filter
• A bank 1 sensor reporting false soot loading
• Short trip driving that never completes a regeneration
• An overfueling fault feeding soot to the bank 1 filter

What to do next

1. Read bank 1 DPF soot load and regeneration count on a scan tool
2. Check the bank 1 pressure and EGT sensors for false readings
3. Look for an overfueling or misfire fault on bank 1
4. Inspect the bank 1 exhaust for restriction
5. Repair the sensor or fuel fault driving the frequent regenerations
6. Clear the code and retest

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