Chevrolet Spark manuals

Mazda CX-5 Service & Repair Manual: Air Fuel Ratio (A/F) Sensor Inspection

Mazda CX-5 Service & Repair Manual / Engine / Control / Air Fuel Ratio (A/F) Sensor Inspection

A/F Sensor Inspection

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

2. Switch the ignition ON (engine 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. Disconnect the negative battery cable..

2. Disconnect the A/F sensor connector.

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


Air Fuel Ratio (A/F) Sensor Heater Control
Outline Based on the control of the A/F sensor heater, a stabilized oxygen concentration is detected even at low exhaust temperatures, and feedback control of fuel injection even at cold ...

Air Fuel Ratio (A/F) Sensor 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 system. CAUTION: Do not allow fla ...

Other materials:

Starter Interlock Switch Removal/Installation [C66 M R]
1. Disconnect the negative battery cable.. 2. Disconnect the starter interlock switch connector. 3. Remove the starter interlock using the following procedure: a. Detach hook A in the direction of the arrow shown in the figure. b. Slide the starter interlock switch in the direction of th ...

Cylinder Head Gasket
Purpose, Function The cylinder head gasket is installed between the cylinder head and cylinder block to prevent leakage of air-fuel mixture, combustion gas, engine oil, and engine coolant. Construction A four-layer type metal gasket has been adopted for the cylinder head ga ...

Camshaft Position (CMP) Sensor Inspection
Intake CMP Sensor Visual inspection 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 material, the sensor output signal will malfunction resulting from fluctuation in magnetic flux and caus ...

© 2016-2025 Copyright www.mcx5.org