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:
Keyless Control Module Inspection
1. Remove the following parts:
a. Passenger-side front scuff plate.
b. Passenger-side front side trim.
c. Grove compartment.
d. Passenger-side lower panel.
2. Measure the voltage according to the terminal voltage table.
If the voltages cannot be verified as indicated in the termina ...
Turn and Lane-Change Signals
The ignition must be switched ON to use
the turn and lane-change signals.
Turn Signals
Move the signal lever down (for a left
turn) or up (for a right turn) to the stop
position. The signal will self-cancel after
the turn is completed.
If the indicator light continues to flash
after a turn ...
Oil Seal Replacement [FS5 A EL]
1. Remove the aerodynamic under cover No. 2..
2. Remove the oil seal.
a. Drain the ATF..
b. Remove the drive shaft and/or joint shaft..
CAUTION:
The oil seal is easily damaged by the sharp edges of the drive shaft splines.
Do not let the splines contact the oil seal.
c. Remo ...
