Chevrolet Spark manuals

Mazda CX-5 Service & Repair Manual: Heated Oxygen Sensor (HO2 S) Inspection

Mazda CX-5 Service & Repair Manual / Engine / Control / Heated Oxygen Sensor (HO2 S) Inspection

HO2S 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 HO2S output voltage (PID: O2S12) is 0.3 V or less

while decelerating as shown in the figure.


HO2S Heater Inspection

WARNING:

1. Disconnect the negative battery cable..

2. Lift up the vehicle.

3. Remove the floor under cover. (vehicles with floor under cover).

4. Disconnect the HO2S connector.

5. Measure the resistance between HO2S terminals C and D.


Heated Oxygen Sensor (HO2 S) Heater Control
Outline Based on the control of the HO2S heater, a stabilized oxygen concentration is detected even at low exhaust temperatures, and feedback control of fuel injection even at cold engine ...

Heated Oxygen Sensor (HO2 S) 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:

Storage Compartments
WARNING Keep storage boxes closed when driving: Driving with the storage boxes open is dangerous. To reduce the possibility of injury in an accident or a sudden stop, keep the storage boxes closed when driving. CAUTION Do not leave lighters or eyeglasses in the storage boxes while parked under ...

Connecting Rod, Connecting Rod Bearing
Purpose, Function Connecting rod The connecting rod transmits the reciprocating movement of the piston to the crankshaft by engaging the piston pin and crank pin. Connecting rod bearing The connecting rod bearing forms an oil film on the outer surface of the crank pin to p ...

Installing Child-Restraint Systems
Accident statistics reveal that a child is safer in the rear seat. The front passenger's seat is clearly the worst choice for any child under 12, and with rear-facing childrestraint systems it is clearly unsafe due to air bags. NOTE Even if your vehicle is equipped with front passenger sea ...

© 2016-2026 Copyright www.mcx5.org