P2198 on 2004-2020 Ford F-150 — O2 Sensor Signal Biased/Stuck Rich (Bank 2, Sensor 1)
1 vehicles · 1 makes · $50-$700 repair
Most Reported On
P2198 is an OBD-II diagnostic trouble code meaning “O2 Sensor Signal Biased/Stuck Rich (Bank 2, Sensor 1).” The PCM detected that the upstream (sensor 1) oxygen/air-fuel sensor on bank 2 is stuck reporting a rich signal and is not responding to mixture changes. The bank 2 sensor signal is biased rich and unresponsive. This code is most commonly reported on 2004-2020 Ford F-150, with repair costs ranging from $50 to $700.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P2198, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
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- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
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- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
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- AutoVIN for vehicle identification
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Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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FAQ
What does P2198 mean?
P2198 stands for "O2 Sensor Signal Biased/Stuck Rich (Bank 2, Sensor 1)." The PCM detected that the upstream (sensor 1) oxygen/air-fuel sensor on bank 2 is stuck reporting a rich signal and is not responding to mixture changes. The bank 2 sensor signal is biased rich and unresponsive.
What are the most common causes of P2198?
The most common causes of P2198 are: Failed/aged upstream O2 (A/F) sensor bank 2, Actual rich condition (leaking injector, high fuel pressure), Contaminated sensor, Sensor wiring/connector fault, Faulty fuel pressure regulator. The specific cause varies by vehicle.
How much does it cost to fix P2198?
Repair costs for P2198 range from $50 to $700, depending on the vehicle and root cause.
Which vehicles are affected by P2198?
Au7o has documented P2198 across 1 vehicle models from 1 manufacturers: Ford.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.