Mazda 3 Service Manual: 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:
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Damage, cracks, soiling
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Rusted sensor terminal
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Bent sensor terminal
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If there is any malfunction, repair or replace the MAF/IAT sensor..
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..
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If not as verified, replace the MAF/IAT sensor..
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:
Front Door Key Cylinder Removal/Installation
1. To access the glass installation bolt, position the front door glass so that
the distance from the top of the front door glass to the upper part of the front
beltline molding is approx. 80 mm {3.1 in}.
2. Disconnect the negative battery cable..
3. Remove the following parts:
a. Inne ...
Forced Ignition On [With Advanced Keyless Entry And Push Button Start System]
NOTE:
In order to perform a forced ignition ON, the M-MDS (IDS) is necessary. If
the servicing is being done outside of an Authorized Mazda dealership, contact
an Authorized Mazda dealership for instructions.
The forced ignition ON procedure forces a power supply to each part w ...
Oil Control Valve (OCV) Removal/Installation [Mzr 2.0, Mzr 2.5]
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the plug hole plate..
4. Disconnect the wiring harness.
5. Remove the ignition coils..
6. Remove the ventilation hose.
7. Remove the oil level gauge.
8. Remove the cylinder head cover..
9. Remove in th ...