Turbocharger Boost Control Position Sensor Range/Performance
The turbocharger actuator position sensor reports a value, but it does not track commanded vane or wastegate position within tolerance. Often a sticky VTG mechanism due to soot.
Affected components
- Turbocharger actuator
- Turbocharger vanes
Common causes
- High likelihood: VTG vanes coked, sticky
- Medium likelihood: Actuator linkage worn
- Low likelihood: Sensor element aged beyond calibration window
Possible symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
- Reduced-power or limp mode may occur
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.