Kia Sedona: Heated Oxygen Sensor (HO2S) Description and Operation
Third generation YP (2014-2024) / Kia Sedona YP Service Manual / Engine Control / Fuel System / Engine Control System / Heated Oxygen Sensor (HO2S) Description and Operation
| Description |
Heated Oxygen Sensor (HO2S) consists of the zirconium and the
alumina and is installed on upstream and downstream of the Warm-up
Catalytic Converter (WCC).
After it compares oxygen consistency of the atmosphere with
the exhaust gas, it transfers the oxygen consistency of the exhaust gas
to the ECM. When A/F ratio is rich or lean, it generates approximately
1V or 0V respectively. In order for this sensor to normally operate, the
temperature of the sensor tip should be higher than 370°C (698°F). So
it has a heater which is controlled by the ECM duty signal.
When the exhaust gas temperature is lower than the specified value, the heater warms the sensor tip.
Heated Oxygen Sensor (HO2S) Specifications
Specification
[Bank 1/Sensor 1]
ItemSpecificationHeater Resistance (Ω)3.3 ~ 4.1[20°C(68°F)]
[Bank 1/Sensor 2]
ItemSpecificationHeater Resistance (Ω)3.3 ~ 4.1[20°C(68°F)]
[Ba ...
Heated Oxygen Sensor (HO2S) Schematic Diagrams
Circuit Diagram
...
Other Information:
CVVT Oil Temperature Sensor (OTS) Repair procedures
Inspection
[Resistance Inspection]
1.
Turn the ignition switch OFF.
2.
Remove the OTS. (Refer to "Removal")
3.
After immersing the thermistor of the sensor into engine coolant, measure ...
Radial-ply tires
Radial-ply tires provide improved tread life, road hazard resistance and smoother
high speed ride. The radial- ply tires used on this vehicle are of belted construction,
and are selected to comple ...
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