Kia Optima: Heated Oxygen Sensor (HO2S). Description and Operation
Description
Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed both upstream and downstream of the Manifold Catalytic Converter. The sensor output voltage varies in accordance with the air/fuel ratio.The sensor must be hot in order to operate normally. To keep it hot, the sensor has a heater which is controlled by the ECM via a duty cycle signal. When the exhaust gas temperature is lower than the specified value, the heater warms the sensor tip.
Installation
•
Install the component with the specified
torques.
•
Note that internal damag ...
Heated Oxygen Sensor (HO2S). Specifications
Specification
HO2S [Bank 1/Sensor 1]
Item
Specification
Heater Resistance (Ω)
2.5 ~ 4.0 [20°C(68°F)]
HO2S [Bank 1/Sensor 2]
...
See also:
Radiator. Repair procedures
...
Installation
1.
Install the wiper motor.
2.
Install the crank arm.
Tighting torque:24.5 ~
26.4Nm (2.5 ~ 2.7, kgf.m, 18.0 ~ 19.5 lbf.ft)
...
Repair procedures
General Inspection
After or before servicing the EPS system, perform the troubleshooting and test procedure
as follows. Compare the system condition with normal condition in the table below
and i ...
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