OBD-II code · Powertrain (generic, extended)
P226E Particulate Filter Deteriorated/Missing Substrate (Bank 2)
The DPF substrate on bank 2 has been detected as cracked, melted, or removed. Differential pressure across the filter is too low for the measured exhaust flow — the soot trap no longer works.
Is it safe to drive with P226E?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelySubstrate cracked, melted, or removed
Symptoms
- Check engine light or DPF warning light on
- Power loss / limp mode
- Increased fuel consumption
- Failed forced regeneration attempts
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–8 h
- Emissions test
- Likely to fail
- Parts involved
- Diesel Particulate Filter
Related codes
- P226DParticulate Filter Deteriorated/Missing Substrate (Bank 1)
- P226BTurbocharger/Supercharger A Boost Pressure Too High - Mechanical
- P226CTurbocharger Boost Control A Slow Response
- P226FTurbocharger Boost Control B Slow Response
- P2270O2 Sensor Signal Stuck Lean (Bank 1, Sensor 2)
- P2271O2 Sensor Signal Stuck Rich (Bank 1, Sensor 2)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.