Barometric Pressure - Turbocharger/Supercharger Inlet Pressure Correlation Bank 2
The relationship between barometric pressure and turbo inlet pressure (bank 2) is implausible — at engine off the two should match. Indicates an inlet sensor or barometric sensor fault.
Affected components
- Barometric pressure sensor
- Turbo inlet pressure sensor b2
Common causes
- High likelihood: Turbo inlet pressure sensor drifted
Possible symptoms
- Check engine light on
- Significant power loss / limp mode
- Possible blue or black smoke from exhaust
- Whistling or hissing sound from intake
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.