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: Infant or small child
You should be aware of the specific requirements in your country. Child and/or
infant seats must be properly placed and installed in the vehicle seat. For more
information about the use of these restraints, refer to “Child restraint system”
in this section.
WARNING
Every person in your v ...
Kia Niro 2017 (DE HEV) Service Manual: CVVT Oil Control Valve (OCV) Repair procedures
Inspection
1.
Switch "OFF" the ignition.
2.
Disconnect the OCV connector.
3.
Measure resistance between the OCV terminals 1 and 2.
4.
Check that the resistance is within the specificat ...
