Aborted KOER - ICP Failure
The POWERSTROKE-P1284 (Power Stroke) diesel fault code means: Aborted KOER - ICP Failure. This is a serious severity code.
- Keep driving?
- No -- stop driving
- DIY difficulty
- advanced
- Estimated cost
- $150-$2,000
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Common Symptoms
- Hard start
- Low power
Probable Causes (Ranked by Likelihood)
- ICP system unable to build pressure Likely
- Oil leak in HPO system Likely
Step-by-Step Diagnostic Procedure
Pressure test HPO.
Repair leaks.
Frequently Asked Questions
What is P1284 on a 7.3L Power Stroke?
P1284 on a 7.3L Power Stroke (1994-2003) indicates: Aborted KOER - ICP Failure. This is a known diagnostic trouble code on this engine family and typically points to the causes listed above.
Can I drive with P1284 on my Power Stroke?
No. Stop driving and arrange for towing. Continued operation risks serious engine or emissions system damage.
How much does it cost to fix P1284?
Repair cost is typically $150-$2,000 depending on the underlying cause and whether you DIY or use a shop. Diagnostic time alone runs $100-$180 at most independent diesel shops.
P1284 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown: