Mazda 2: Air Fuel Ratio (A/F) Sensor

Mazda 2 2007-2014 Service Manual / Engine / Control System / Air Fuel Ratio (A/F) Sensor

AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION

WARNING:

1. Disconnect the negative battery cable.

2. Remove the air cleaner cover. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION).

3. Disconnect the A/F sensor connector.

4. Remove the A/F sensor using the SST.

Mazda 2. AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION

5. Install in the reverse order of removal.

AIR FUEL RATIO (A/F) SENSOR INSPECTION

A/F Sensor Inspection

1. Warm up the engine to normal operating temperature.

2. Using the M-MDS, monitor the following:

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

4. Verify that the A/F sensor current (PID: O2S11) is 0.25 mA or more while decelerating as shown in the figure.

Mazda 2. AIR FUEL RATIO (A/F) SENSOR INSPECTION

A/F Sensor Heater Inspection

1. Disconnect the A/F sensor connector.

2. Measure the resistance between A/F sensor terminals C and D.

Mazda 2. AIR FUEL RATIO (A/F) SENSOR INSPECTION

A/F sensor heater resistance

READ NEXT:

 Heated Oxygen Sensor (HO2S)

HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION 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 syst

 Crankshaft Position (CKP) Sensor

CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION CAUTION: When replacing the CKP sensor, make sure there is no foreign material on it such as metal shavings. If it is installed with foreign

 Camshaft Position (CMP) Sensor

CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION CAUTION: When replacing the CMP sensor, make sure there is no foreign material on it such as metal shavings. If it is installed with foreign ma

SEE MORE:

 Power Brake Unit

POWER BRAKE UNIT INSPECTION NOTE: The following inspection methods are simple inspection methods to judge the function of the power brake unit. If there is any malfunction in the power brake unit, replace the power brake unit as a single component. Without Using SST Operation inspection 1.

 Aerial

Embedded Type * The aerial is embedded into the window glass. CAUTION When washing the inside of the window which has an aerial, use a soft cloth dampened in lukewarm water, gently wiping the aerial lines. Use of glass cleaning products could damage the aerial. Detachable Type To remove

© 2016-2021 Copyright www.m2info.net