Particulate Filter Efficiency Below Threshold
The PERKINS-P2002 (Perkins) diesel fault code means: Particulate Filter Efficiency Below Threshold. This is a serious severity code.
- Keep driving?
- Yes, with caution
- DIY difficulty
- advanced
- Estimated cost
- $900-$2,200 ash clean
What Are the Symptoms of PERKINS-P2002?
- DPF warning
- Derate
What Causes PERKINS-P2002? (Most Likely First)
- Ash load at service limit Very Likely
- Leaking DPF gasket Possible
Can I Still Drive with PERKINS-P2002?
Yes, with caution. PERKINS-P2002 is rated serious severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What is Perkins fault code P2002?
Perkins P2002 means: Particulate Filter Efficiency Below Threshold. Serious code -- address promptly to avoid inducement / further damage.
Can I keep operating with Perkins P2002?
Serious fault -- you can move the machine to a shop but don't run it under load. Diagnose with Perkins EST / CAT ET (kin to CAT-badged machines).
How much does it cost to fix Perkins P2002?
Repair cost range: $900-$2,200 ash clean.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose PERKINS-P2002?
Send DPF for ash clean at ~4,000 hrs.
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines P2002 as a generic OBD-II code)
P2002 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown:
Which Vehicles Commonly Get PERKINS-P2002?
- CAT and JCB compact wheel loaders with Perkins 854E
- CAT 244D / 246D / 262D skid steers (Perkins-derived)
- JCB 3CX / 4CX backhoes with 1104D / 1204E
- Manitou telehandlers with Perkins 1104D / 1204E
- Perkins 2506 / 2806 industrial gensets
Explore More
Was this helpful?
Send this to whoever is fixing the truck — your tech, or the person asking what the fault means.