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:
Trailing Arm. Repair procedures
Replacement
1.
Remove the rear wheel & tire.
Tightening torque:88.3
~ 107.9N.m (9.0 ~ 11.0kgf.m, 65.1 ~ 79.6lb-ft)
...
Engine Oil. Repair procedures
...
Removal
[Bank 1 / Intake]
1.
Turn the ignition switch OFF and disconnect the battery
negative (-) cable.
2.
Remove the OTS (A).
3.
Disco ...
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