P0049

Q: Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

Turbocharger/Supercharger A Turbine Overspeed

High severity

The turbocharger A turbine speed exceeded its safe limit. Risk of bearing damage and shaft fracture. Often caused by a stuck-closed wastegate or boost control fault.

Common causes

Wastegate stuck closed
One of the most commonly reported causes for this code — check this first.
high
Typical part cost: $330-3300
Boost control loop fault
A plausible cause — test and verify before replacing parts.
medium
Typical part cost: $330-3300
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First things to check

1Confirm the code with a scan tool and check for additional related codes.
2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does P0049 mean?

P0049 means "Turbocharger/Supercharger A Turbine Overspeed". It is a generic OBD-II code that points to a fault in the fuel & air metering / auxiliary emission controls.

What are the most common causes of P0049?

wastegate stuck closed; boost control loop fault — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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