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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View pilot availability →What Are the Symptoms of POWERSTROKE-P2291?
- No start
What Causes POWERSTROKE-P2291? (Most Likely First)
- Failed HPFP Likely
- Leaking injector Likely
Can I Still Drive with POWERSTROKE-P2291?
No — stop driving. POWERSTROKE-P2291 is rated serious severity. Continuing to drive in this state risks further damage — get it looked at before your next trip.
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.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose POWERSTROKE-P2291?
Pressure test fuel rails.
Replace leaky component.
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines P2291 as a generic OBD-II code)
P2291 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 POWERSTROKE-P2291?
- 2008-2010 Ford F-250 Super Duty 6.4L Power Stroke
- 2008-2010 Ford F-350 Super Duty 6.4L Power Stroke
- 2008-2010 Ford F-450/F-550 Super Duty 6.4L Power Stroke
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