Variable Intake-Air System (VIS) Shutter Valve Actuator Inspection
WARNING: This page is about a different car, the 2003 Mazda Protege5, 2003 Mazda Protege, 2003 Mazda MX-5 Miata, 2003 Mazda MPV, and 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
Remove intake-air hose. Disconnect vacuum hose from Variable Intake-Air System (VIS) control solenoid valve. Connect a vacuum pump to VIS shutter valve actuator. Apply vacuum and verify VIS shutter valve actuator rod moves. See VIS SHUTTER VALVE VACUUM APPLICATION - MAZDA6 (2.3L) table.
VIS SHUTTER VALVE VACUUM APPLICATION - MAZDA6 (2.3L)
| Vacuum (in. Hg) | Rod Movement |
|---|---|
| More Than -9.9 | Fully Pulled |
| Less Than -0.7 | Starts To Move |