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:
Outer Mirror Glass Inspection
Vehicles With Heated Outer Mirror
1. Disconnect the negative battery cable..
2. Remove the outer mirror glass..
3. Verify that the resistance is as indicated in the table.
If not as indicated in the table, or if the resistance is not within the
specification, replace the outer mi ...
Rear Seat Back Frame Removal/Installation
1. Remove the rear seat cushion..
2. Remove the rear buckle installation bolt..
3. Remove the rear seat back..
4. Remove the headrest.
5. Open the fasteners.
6. Detach the hooks.
7. Remove the child-restraint seat anchor covers in the order of (1), (2) as
shown in the figure. (5H ...
Joint Shaft Removal/Installation [Mzr 2.0, Mzr 2.3 Disi Turbo, Mzr 2.5]
CAUTION:
Performing the following procedures without first removing the ABS wheel-speed
sensor may possibly cause an open circuit in the wiring harness if it is pulled
by mistake. Before performing the following procedures, remove the ABS wheel-speed
sensor connector (axle side) and ...