Throttle/Pedal Position Sensor B Circuit Range/Performance
The POWERSTROKE-P0221 (Power Stroke) diesel fault code means: Throttle/Pedal Position Sensor B Circuit Range/Performance. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- intermediate
- Estimated cost
- $150-$400
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View pilot availability →What Are the Symptoms of POWERSTROKE-P0221?
- Limp mode
- Reduced throttle response
- CEL
What Causes POWERSTROKE-P0221? (Most Likely First)
- Failed APP (accelerator pedal position) sensor Very Likely
- Damaged APP wiring or connector Likely
Can I Still Drive with POWERSTROKE-P0221?
Short distances only. POWERSTROKE-P0221 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What is P0221 on a 7.3L Power Stroke?
P0221 on a 7.3L Power Stroke (1994-2003) indicates: Throttle/Pedal Position Sensor B Circuit Range/Performance. This is a known diagnostic trouble code on this engine family and typically points to the causes listed above.
Can I drive with P0221 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 P0221?
Repair cost is typically $150-$400 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-P0221?
Monitor APP1 and APP2 PIDs with scan tool sweeping pedal.
Both signals should track proportionally; divergence = failed APP assembly.
Inspect pedal connector for corrosion.
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines P0221 as a generic OBD-II code)
P0221 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-P0221?
- 1994.5-1997 Ford F-250/F-350 7.3L Power Stroke
- 1999-2003 Ford F-250/F-350 Super Duty 7.3L Power Stroke
- 1999-2003 Ford F-450/F-550 Super Duty 7.3L Power Stroke
- 1994.5-2003 Ford E-350/E-450 7.3L Power Stroke
- 2000-2003 Ford Excursion 7.3L Power Stroke
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