DPF Efficiency Below Threshold
What does MAXXFORCE-P2002-11 mean?
The MAXXFORCE-P2002-11 (MaxxForce) diesel fault code means: DPF Efficiency Below Threshold. This is a serious severity code.
Common Symptoms
- CEL
- Derate
- Frequent regen requests
Probable Causes (Ranked by Likelihood)
- Ash-loaded DPF Very Likely
- Failed DOC allowing unburned HC into DPF Likely
Step-by-Step Diagnostic Procedure
Perform forced regen via service tool.
If efficiency does not recover, remove DPF for bake or replace.
Check DOC for thermal damage.
Frequently Asked Questions
What is P2002 on a MaxxForce 11 (10.5L)?
P2002 on a MaxxForce 11 (10.5L) (2008-2014) indicates: DPF Efficiency Below Threshold. This is a known fault code on the MaxxForce engine family and typically points to the causes listed above.
Can I drive with P2002 on my MaxxForce?
Only drive short distances to reach a repair facility. Continued operation may cause further damage or progressive derate.
How much does it cost to fix MaxxForce P2002?
Repair cost is typically $800-$5,000 depending on the underlying cause and shop rate. Many MaxxForce faults (especially EGR cooler, head bolt, and VGT repairs) are major expenses that drove fleet owners to repower with Cummins or retire these trucks early.