Kia Niro: Engine Control System / Heated Oxygen Sensor (HO2S) Description and operation
| Description |
Heated Oxygen Sensor (HO2S), consisting of zirconium and alumina, is installed on both upstream and downstream of the Manifold Catalytic Converter (MCC) to detect the air/fuel ratio and send it to the ECM. 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.
Heated Oxygen Sensor (HO2S) Specifications
Specification
HO2S [Bank 1/Sensor
1] (Linear)
Item
Specification
Heater Resistance (Ω)
2.5 - 4.0 [20°C(68°F)]
HO ...
Heated Oxygen Sensor (HO2S) Schematic diagrams
Circuit Diagram
Harness Connector
[Bank 1 / Sensor 1]
[Bank 1 / Sensor 2]
...
Other information:
Kia Niro (DE HEV) Owners Manual: Auto control
The rain sensor (A) located on the upper end of the windshield glass senses the
amount of rainfall and controls the wiping cycle for the proper interval. The more
it rains, the faster the wiper operates. When the rain stops, the wiper stops.
To vary the speed setting, turn the speed control k ...
Kia Niro (DE HEV) Owners Manual: Using a cellular phone or a twoway radio
When a cellular phone is used inside the vehicle, noise may be produced from
the audio system. This does not mean that something is wrong with the audio equipment.
In such a case, use the cellular phone at a place as far as possible from the audio
equipment.
CAUTION
When using a communicatio ...
