Mazda 3 Service Manual: Variable Intake Air Shutter Valve Actuator Inspection [Mzr 2.0, Mzr 2.5]
Operation Inspection
1. Remove the air hose..
2. Disconnect the vacuum hose from the variable intake air shutter valve actuator.
3. Connect a vacuum pump to the variable intake air shutter valve actuator.
NOTE:
-
Covered with a hood, the rod of the variable intake air shutter valve actuator cannot be seen from above. Use a mirror from under it to check the operation of the variable intake air shutter valve.
4. Check if the rod operates correctly as stated in the table when a gradual
negative pressure is applied to the variable intake air shutter valve actuator.
|
Vacuum kPa {mmHg, inHg} |
Rod movement |
|
Below –2.7 {–20, –0.8} |
Not operate |
|
Above –33.4 {–251, –9.86} |
Fully pulled |
-
When it is not possible to confirm it, replace the intake manifold..
-
When the variable intake air shutter valve actuator cannot be activated even though the operation of the rod can be confirmed, check for any incorrect connections or breakage of the vacuum hose.
Intake Manifold Vacuum Inspection [Mzr 2.0, Mzr 2.5]
1. Disconnect the evaporative hose (purge solenoid valve side) and install the
vacuum gauge..
2. Verify that the intake air hoses are installed securely.
3. Warm up the engine.
4. Measure the ...
Variable Intake Air Solenoid Valve Inspection [Mzr 2.0, Mzr 2.5]
Airflow Inspection
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the variable intake air solenoid valve..
4. Inspect airflow between the ports under the fol ...
Other materials:
Front ABS Wheel Speed Sensor Removal/Installation
1. Remove in the order indicated in the table.
2. Install in the reverse order of removal.
3. After installation, verify that there is no twisting in the front ABS wheel-speed
sensor.
1
Connector
2
Front ABS wheel-speed sensor
...
Fuel Line Pressure Inspection [Mzr 2.0, Mzr 2.5]
WARNING:
Fuel line spills and leakage from the pressurized fuel system are dangerous.
Fuel can ignite and cause serious injury or death and damage. To prevent this,
complete the following inspection with the engine stopped.
Fuel is very flammable liquid. If fuel spills or leaks ...
Hill Launch Assist (HLA)
Hill Launch Assist (HLA) is a function
which assists the driver in accelerating
from a stop while on a slope. When
the driver releases the brake pedal and
depresses the accelerator pedal while
on a slope, the function prevents the
vehicle from rolling. The braking force is
maintained automati ...
