O2 Sensor Out of Range During Deceleration Bank 1 Sensor 3
The wide-band oxygen sensor on bank 1 sensor 3 reports a out of range during deceleration condition. Lambda regulation accuracy is impaired.
Affected components
- Oxygen sensor b1s3
- Wiring harness
- Ecm
Common causes
- High likelihood: Sensor unable to follow oxygen spike during fuel cut
- Medium likelihood: Sensor response time degraded with age
Possible symptoms
- Check engine light on
- Increased fuel consumption
- Possible rough idle or hesitation
- Failed emissions test
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.