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P22D4 Powertrain

Turbocharger Turbine Inlet Valve Position Sensor Circuit

A general electrical fault on the turbine inlet valve position sensor — open, shorted, or out of plausibility.

Affected components

  • Turbine inlet valve

Common causes

  • High likelihood: Position sensor failed

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

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.

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