Solenoid Valves (Turbo Precontrol & Wastegate Control)
WARNING: This page is about a different car, the 1995 Mazda RX-7. However, it is still accessible from the selected car via links, so may be relevant.
- Remove pressure chamber from intake manifold. Disconnect vacuum hoses. Disconnect solenoid valve connector and solenoid valves. Blow air through air tube and verify air does not flow. If air flows through valve, replace solenoid valve.
- Apply 12 volts and ground to solenoid valve connector. See Fig 1 . Blow air through air tube and verify air flows freely. If air does not flow freely with 12 volts applied, replace solenoid valve.