Mazda 3 manuals

Mazda 3 Service Manual: Air Fuel Ratio (A/F) Sensor Inspection [Mzr 2.0, Mzr 2.5]

Mazda 3 Service Manual / Engine / Control / Sensors, Switches, Relays / Air Fuel Ratio (A/F) Sensor Inspection [Mzr 2.0, Mzr 2.5]

A/F Sensor Inspection

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


2. Switch the ignition to ON.

3. Warm up the engine to normal operating temperature.

4. Access the following PIDs using the M-MDS..

5. Drive the vehicle and decelerate the engine speed by releasing the accelerator pedal fully when the engine speed is 3,000 rpm or more

.

6. Verify that the A/F sensor output current (PID: O2S11) is 0.25 mA or more

while decelerating as shown in the figure.


A/F Sensor Heater Inspection

WARNING:

1. Remove the battery cover..

2. Disconnect the negative battery cable..

3. Remove the plug hole plate..

4. Remove the air cleaner assembly. (MZR 2.5).

5. Disconnect the A/F sensor connector.

6. Measure the resistance between A/F sensor terminals A and E.


Accelerator Pedal Position (App) Sensor Inspection [Mzr 2.0, Mzr 2.5]
Voltage Inspection NOTE: Because the APP sensor is integrated in the accelerator pedal, replacing the APP sensor includes replacement of the accelerator pedal. 1. Connect the M-MDS t ...

Air Fuel Ratio (A/F) Sensor Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING: A hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system. 1. Remove the battery cover.. 2 ...

Other materials:

Fuel Gauge
The fuel gauge shows approximately how much fuel is remaining in the tank when the ignition is switched ON. We recommend keeping the tank over 1/4 full. Type A/Type B instrument cluster Type C instrument cluster If the low fuel warning light illuminates or the fuel level is very low, ...

Neutral Switch Removal/Installation [G35 M R]
1. Remove the battery cover.. 2. Disconnect the negative battery cable. 3. Remove the battery component. (ex: battery, battery tray and PCM component)(See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5].) 4. Remove the aerodynamic under cover No.2.. 5. Drain the oil from the transaxle.. ...

Antenna (4-Door)
AM/FM Radio Antenna The AM/FM radio antenna receives both AM and FM signals. The antenna is embedded into the window glass. CAUTION When washing the inside of the window which has an antenna, use a soft cloth dampened in lukewarm water, gently wiping the antenna lines. U ...

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