Code result
P2D30
Cold Start Turbocharger/Supercharger A Overboost
High severity
What it means
During cold start, turbocharger/supercharger A produces boost pressure above the cold-start target. Wastegate sticking closed or boost control overshoot.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Wastegate sticking closed at cold
highOne of the most commonly reported causes for this code — check this first.
Boost control overshoot at cold
mediumA plausible cause — test and verify before replacing parts.
Related help
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