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 2017 (DE HEV) Service Manual: Engine Coolant Temperature Sensor (ECTS) Repair procedures
Inspection
1.
Switch "OFF" the ignition.
2.
Remove the ECTS (Refer to "Removal").
3.
After immersing the thermistor of the sensor into engine coolant, measure
resistance between the ECTS terminals ...
Kia Niro (DE HEV) Owners Manual: FM radio station
FM broadcasts are transmitted at high frequencies and do not bend to follow the
earth's surface. Because of this, FM broadcasts generally begin to fade at short
distances from the station. Also, FM signals are easily affected by buildings, mountains,
or other obstructions. These can resu ...
