P0046Medium SeverityEngine

Turbo/Supercharger Boost Control Solenoid Circuit Range/Performance

What This Means

The boost control solenoid is operating but not producing the expected results. The solenoid may be sluggish or not achieving full travel.

Common Symptoms

Inconsistent boost
Power variations
Turbo lag
Check engine light on

Common Causes

Sticking solenoid
Vacuum line leak
Worn solenoid
Carbon buildup
Incorrect boost pressure sensor reading

Estimated Repair Cost

$150 – $700

Parts and labor (varies by vehicle and location)

Difficulty:Moderate

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For informational purposes only. Diagnostic trouble codes are starting points for diagnosis, not definitive answers. Always consult a certified mechanic for proper diagnosis and repair. Estimated costs vary by vehicle, location, and shop rates.