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.
-
If not within the specification, perform the following inspections.
-
Compression pressure.
-
Air suction
-
Installation areas of each vacuum hose
-
Installation area of throttle body
-
Installation area of fuel injector
-
Installation area of PCV valve
-
Installation area of intake manifold
-
Standard
-
MZR 2.0: Approx. –68.0 kPa {–510 mmHg, –20.1 inHg}
-
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:
Knock Sensor (Ks) Inspection [Mzr 2.0, Mzr 2.5]
Resistance Inspection
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Disconnect the KS connector.
4. Measure the resistance between KS terminals A and B.
If not as specified, replace the KS..
Specification
Approx. 4.87 megohms [normal tem ...
Interior Light Bulb Removal/Installation
1. Disconnect the negative battery cable..
2. Insert a tape-wrapped fastener remover into the service hole and pry with
the screwdriver in the direction shown by the arrow to remove the lens.
3. Remove the interior light bulb.
4. Install in the reverse order of removal. ...
Steering SST
49 H032 301
Wrench
49 F017 1A0
Universal wrench
49 F032 303
Handle
49 B032 323
Rod seal remover body
49 N032 319A
Support plate
49 ...
