Exhaust Gas Temperature Measurement System Multiple Sensor Correlation Bank 1
The multiple EGT sensors on bank 1 disagree by more than the diagnostic tolerance under stable conditions - one of them has drifted relative to the others.
Affected components
- Egt sensor b1s1
- Egt sensor b1s2
- Egt sensor b1s3
- Egt sensor b1s4
Common causes
- High likelihood: One sensor has drifted
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
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.