Code result

P22D2

Turbocharger Turbine Inlet Valve Stuck Open

High severity

What it means

Turbine inlet valve mechanically stuck open — exhaust gas flow cannot be redirected, sequential charging fails.

Is it safe to drive?

No — stop driving

This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.

Most likely causes

  • Valve seized open from carbon

    high

    One of the most commonly reported causes for this code — check this first.

  • Carbon or debris buildup preventing free movement

    low

    Less common, but worth ruling out after the more likely causes.

  • Component wear with age - mechanical play

    low

    Less common, but worth ruling out after the more likely causes.

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