DPF Efficiency Below Threshold
The POWERSTROKE-P2002 (Power Stroke) diesel fault code means: DPF Efficiency Below Threshold. This is a serious severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- advanced
- Estimated cost
- $400-$3,500
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Common Symptoms
- CEL
- Limp mode
- Reduced power
Probable Causes (Ranked by Likelihood)
- DPF loaded or plugged Very Likely
- Failed DPF pressure sensor Likely
- Cracked DPF substrate from runaway regen Possible
Step-by-Step Diagnostic Procedure
Check DPF delta-P sensor PIDs on scan tool.
Run a forced regen; if DPF won't clear, remove and inspect for cracks.
Replace or clean DPF as needed.
Frequently Asked Questions
What is P2002 on a 6.4L Power Stroke?
P2002 on a 6.4L Power Stroke (2008-2010) indicates: DPF Efficiency Below Threshold. This is a known diagnostic trouble code on this engine family and typically points to the causes listed above.
Can I drive with P2002 on my Power Stroke?
Only drive short distances to get to a repair facility. Continued operation may cause further damage.
How much does it cost to fix P2002?
Repair cost is typically $400-$3,500 depending on the underlying cause and whether you DIY or use a shop. Diagnostic time alone runs $100-$180 at most independent diesel shops.
P2002 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown: