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P01F6

O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 4

What this code means

Diagnostic trouble code P01F6 indicates: O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 4. It was set by your vehicle's onboard diagnostics system and will typically keep the check engine light on until it's addressed.

ECUs that can switch off P01F6

P01F6 is part of the Lambda / O2 OFF group. These ECUs support Lambda / O2 OFF, which switches it off:

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