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Home >> Mazda >> 1994 >> 929 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Air Induction Systems >> Variable Inertia Charging System >> Shutter Valve Actuator
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Shutter Valve Actuator

Disconnect vacuum hose from shutter valve actuator. See Figure . Connect vacuum pump to actuator. Apply vacuum and verify shutter valve rod retracts. Replace as necessary.