Kia Cee'd: Engine Control System / Heated Oxygen Sensor (HO2S) Description and operation

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.

Knock Sensor (KS) Repair procedures

Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Remove the intake manifold. (Re ...

Heated Oxygen Sensor (HO2S) Specifications

Specification HO2S [Bank 1/Sensor 1]   Item Specification Heater Resistance (Ω) 2.4 ~ 4.0 [20°C(68°F)] ...

Other information:

Kia Cee'd JD Service Manual: ETC (Electronic Throttle Control) System Troubleshooting
Fail-Safe Mode   Item Fail-Safe ETC Motor Throttle valve stuck at 7° TPS TPS 1 fault ECM looks at TPS2 TPS 2 fault ECM looks at TPS1 TP ...

Kia Cee'd JD Owners Manual: Paddle shifter
The paddle shifter is available when the shift lever is in the D (Drive) position or the sports mode. With the shift lever in the D position The paddle shifter will operate when the vehicle speed is more than 10km/h. Pull the [+] or [-] paddle shifter once to shift up or down one gear a ...