NOx Sensor Bank 1 Sensor 1 Circuit Performance
The POWERSTROKE-P220B (Power Stroke) diesel fault code means: NOx Sensor Bank 1 Sensor 1 Circuit Performance. This is a serious severity code.
Unverified. We could not confirm this code's definition against freely available manufacturer documentation, so treat the meaning, severity and fix guidance on this page as unconfirmed. Check it against the manufacturer's service information for your exact model and serial range before acting on it. This page is kept out of search engines for that reason, and we are working through this family manual by manual.
- Keep driving?
- Short distances only
- DIY difficulty
- intermediate
- Estimated cost
- $400-$1,200
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View pilot availability →What Are the Symptoms of POWERSTROKE-P220B?
- CEL
- Increased NOx warning
- Possible derate
What Causes POWERSTROKE-P220B? (Most Likely First)
- Failed upstream NOx sensor Very Likely
- Wiring damage from exhaust heat Likely
- SCR system fouling causing sensor confusion Possible
Can I Still Drive with POWERSTROKE-P220B?
Short distances only. POWERSTROKE-P220B is rated serious severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What is P220B on a 6.7L Power Stroke (Scorpion)?
P220B on a 6.7L Power Stroke (Scorpion) (2011-present) indicates: NOx Sensor Bank 1 Sensor 1 Circuit Performance. This is a known diagnostic trouble code on this engine family and typically points to the causes listed above.
Can I drive with P220B 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 P220B?
Repair cost is typically $400-$1,200 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-P220B?
Scan upstream and downstream NOx sensor ppm readings.
Compare to expected values at idle / cruise.
Replace failed sensor with OEM (aftermarket NOx sensors have high early-failure rate).
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines P220B as a generic OBD-II code)
P220B 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-P220B?
- 2011-present Ford F-250 Super Duty 6.7L Power Stroke
- 2011-present Ford F-350 Super Duty 6.7L Power Stroke
- 2011-present Ford F-450/F-550 Super Duty 6.7L Power Stroke
- 2015-2019 Ford F-650/F-750 6.7L Power Stroke
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