Mazda 3 manuals

Mazda 3 Service Manual: Mass Air Flow (MAF) Sensor Inspection [Mzr 2.0, Mzr 2.5]

Mazda 3 Service Manual / Engine / Intake / Mass Air Flow (MAF) Sensor Inspection [Mzr 2.0, Mzr 2.5]

Visual Inspection

1. Remove the battery cover..

2. Disconnect the negative battery cable..

3. Disconnect the MAF/IAT sensor connector.

4. Remove the MAF/IAT sensor..

5. Visually inspect the MAF/IAT sensor for the following:

Voltage Inspection

1. Remove the battery cover..

2. Disconnect the negative battery cable..

3. Remove the MAF/IAT sensor without disconnect the MAF/IAT sensor connector..

4. Reconnect the negative battery cable..

5. Connect the M-MDS to the DLC-2.


6. Switch the ignition to ON.

7. As the air gradually approaches the MAF detection part of the MAF/IAT sensor, verify that the MAF sensor output voltage (PID: MAF) varies..

Manifold Absolute Pressure (Map) Sensor/Intake Air Temperature (Iat) Sensor No.2 Removal/Installation [Skyactiv G 2.0]
NOTE: Because the IAT sensor No.2 is integrated in the MAP sensor, replacing the IAT sensor No.2 includes replacement of the MAP sensor/IAT sensor No.2. 1. Remove the battery cover.. ...

Mass Air Flow (MAF) Sensor/Intake Air Temperature (Iat) Sensor No.1 Removal/Installation [Skyactiv G 2.0]
CAUTION: Be careful not to hit the sensor element or allow foreign matter to get on it during sensor removal/installation. If the sensor element is hit or foreign matter gets on it, an e ...

Other materials:

Thermostat Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING: Never remove the cooling system cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system. Tu ...

Water Pump Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING: Never remove the cooling system cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system. Tu ...

No.28 Fuel Filling Shut Off Concerns [Mzr 2.0, Mzr 2.5]
28 FUEL FILLING SHUT OFF CONCERNS DESCRIPTION Fuel does not shut off properly. POSSIBLE CAUSE PCM DTC is stored Nonreturn valve malfunction Fuel nozzle ...

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