Turbo/Supercharger Overboost Condition

What This Means

The turbocharger or supercharger is producing more boost pressure than the engine can safely handle. Excess boost can cause severe engine damage.

Common Symptoms

• Excessive power surge
• Engine knock
• Check engine light on
• Possible engine damage

Common Causes

• Stuck wastegate
• Faulty boost control solenoid
• Boost pressure sensor error
• Wastegate actuator failure
• Turbo bearing failure

Estimated Repair Cost