Injector Control Pressure Too Low - Engine Cranking
The POWERSTROKE-P2291 (Power Stroke) diesel fault code means: Injector Control Pressure Too Low - Engine Cranking. This is a serious severity code.
- Keep driving?
- No -- stop driving
- DIY difficulty
- advanced
- Estimated cost
- $300-$4,500
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Common Symptoms
- No start
Probable Causes (Ranked by Likelihood)
- Failed HPFP Likely
- Leaking injector Likely
Step-by-Step Diagnostic Procedure
Pressure test fuel rails.
Replace leaky component.
Frequently Asked Questions
What is P2291 on a 6.4L Power Stroke?
P2291 on a 6.4L Power Stroke (2008-2010) indicates: Injector Control Pressure Too Low - Engine Cranking. This is a known diagnostic trouble code on this engine family and typically points to the causes listed above.
Can I drive with P2291 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 P2291?
Repair cost is typically $300-$4,500 depending on the underlying cause and whether you DIY or use a shop. Diagnostic time alone runs $100-$180 at most independent diesel shops.
P2291 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown: