Mazda 3 Service Manual: 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 intake manifold vacuum while idling (no load) using the vacuum gauge.
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If not within the specification, perform the following inspections.
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Compression pressure.
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Air suction
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Installation areas of each vacuum hose
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Installation area of throttle body
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Installation area of fuel injector
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Installation area of PCV valve
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Installation area of intake manifold
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Standard
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MZR 2.0: Approx. 68.0 kPa {510 mmHg, 20.1 inHg}
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MZR 2.5: Approx. 70.0 kPa {525 mmHg, 20.7 inHg}
Intake Air Temperature (Iat) Sensor Inspection [Mzr 2.0, Mzr 2.5]
Resistance Inspection
NOTE:
Because the IAT sensor is integrated in the MAF sensor, replacing the IAT
sensor includes replacement of the MAF/IAT sensor.
1. Remove the battery cover.. ...
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 v ...
Other materials:
Parking in an Emergency
The hazard warning lights should always
be used when you stop on or near a
roadway in an emergency
The hazard warning lights warn other
drivers that your vehicle is a traffic hazard
and that they must take extreme caution
when near it.
Depress the hazard warning flasher and
all the t ...
Headlight Leveling Switch Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the switch panel in the direction of the arrow shown in the figure.
3. Disconnect the connector.
4. Remove the headlight leveling switch in the direction of the arrow (2) shown
in the figure while pressing the tabs in the direction of ...
Locking, Unlocking with Request
Switch (With the advanced keyless
function)
All doors and the liftgate can be locked/
unlocked by pressing the request switch
on the front doors while the key is being
carried.
(5door)
The request switch on the liftgate can only
be used to lock all doors and the liftgate.
Front doors
Liftgate (5-door Lock only)
To lock
To l ...