Code result
P23C2
NOx Sensor Delayed Response High to Low Bank 1 Sensor 3
Moderate severity
What it means
Same as P23C0 with a measurable delay before the sensor begins to track falling levels - the start of the response is delayed, not just the slope.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Sensor element aged
highOne of the most commonly reported causes for this code — check this first.
Related help
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