P0234 is rated as critical severity. Stop driving — risk of damage or safety hazard.

P0234

Turbo/Supercharger Overboost Condition

Q: What does code P0234 mean?

Turbo/Supercharger Overboost Condition: The turbocharger or supercharger is producing more boost than the ECM commanded. Could indicate a stuck wastegate.

Powertrain Code · Critical

What does P0234 mean?

The turbocharger or supercharger is producing more boost than the ECM commanded. Could indicate a stuck wastegate.

System: Turbocharger

P0234 is a powertrain diagnostic trouble code indicating turbo/supercharger overboost condition. This code is classified as critical severity, which means: stop driving — risk of damage or safety hazard.

Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your vehicle.