1. Remove the air hose. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)
2. Disconnect the vacuum hose from the VIS shutter valve actuator.
3. Connect a vacuum pump to the VIS shutter valve actuator.
4. Apply vacuum and verify that the rod moves.
Mazda 6 Service Manual: Recommendations for Shifting
Upshifting
For normal acceleration, Mazda recommends these shift points:
For cruising, Mazda recommends these shift points:
Downshifting
When you must slow down in heavy traffic or on a steep upgrade,
downshift before the engine starts to overwork. This reduces the chance of stalling
and ...
Mazda 6 Service Manual: Purge solenoid valve inspection
Airflow Inspection
Note
Perform the following test only when directed.
1. Disconnect the negative battery cable.
2. Remove the purge solenoid valve. (See PURGE SOLENOID VALVE
REMOVAL/INSTALLATION.)
3. Inspect airflow between the ports under the following conditions.
If not as specifi ...