Code result
P22AF
O2 Sensor Reference Voltage Performance
High severity
What it means
O2 sensor reference voltage on bank 1 sensor 2 is in range but plausibility check fails — drift or instability.
Is it safe to drive?
No — stop driving
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.
Most likely causes
Reference voltage drift
highOne of the most commonly reported causes for this code — check this first.
Related help
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