Code result

P239E

O2 Sensor Out of Range During Deceleration Bank 1 Sensor 2

Moderate severity

What it means

O2 Sensor Out of Range During Deceleration Bank 1 Sensor 2: the control module has detected this fault condition. (Code P239E)

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 slow or aged

    high

    One of the most commonly reported causes for this code — check this first.

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