| Circuit Diagram |

Heated Oxygen Sensor (HO2S) Troubleshooting
Heated Oxygen Sensor (HO2S) Repair proceduresKia Cee'd JD Service Manual: Camshaft Repair procedures
Removal
1.
Remove the cylinder head cover.
(Refer to Cylinder Head Assembly - "Cylinder Head Cover")
2.
Remove the timing chain cover.
(Refer to Timing System - "Timing Chain Cover")
...
Kia Cee'd JD Service Manual: 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 n ...