Shutter Valve Actuator Check
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 Mazda Protege5, 2002 Mazda Protege, 2002 Mazda Millenia, 2002 Mazda MX-5 Miata, and 2002 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect vacuum hose from actuator. Connect a vacuum pump to actuator. Watch actuator rod and slowly apply vacuum to actuator. See SHUTTER VALVE ACTUATOR CHECK table. If actuator does not operate as specified, replace actuator. If system is not working properly but actuator is okay, check vacuum lines.
SHUTTER VALVE ACTUATOR CHECK
| Application (Vacuum - in. Hg) | Actuator Rod Position | |
|---|---|---|
| Miata 1.8L | ||
| More Than -2.0 | Not Pulled | |
| About -2.7 | Starts To Move | |
| Less Than -10.2 | Fully Pulled | |
| Protege & Protege5 2.0L | ||
| More Than -0.80 | Not Pulled | |
| -2.4 to -10.4 | Starts To Move | |
| Less Than -10.4 | Fully Pulled | |
| 626 2.0L | ||
| More Than -0.39 | Not Pulled | |
| -0.40 to -1.18 | Starts To Move | |
| Less Than -7.47 | Fully Pulled | |
NOTE:
Perform VTCS solenoid check only when directed by SELF-DIAGNOSTICS testing.