Kia Optima Hybrid: Engine Control System / Heated Oxygen Sensor (HO2S) Description and Operation

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Engine Control/Fuel System / Engine Control System / 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 Catalytic Converter. It 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 (-) terminal. 2. Drain the engine coolant (Refer to “Cooling System” in EM group). 3. Remove the radiator upper hose (Refer ...

Heated Oxygen Sensor (HO2S) Specifications

Specification HO2S [Bank 1/Sensor 1] (Linear type) ItemSpecificationHeater Resistance (?)2.5 ~ 4.0 [20°C(68°F)] HO2S [Bank 1/Sensor 2] (Binary type) A/F Ratio (?)Output Voltage(V)RICHApprox. 0.92LEANApprox. ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Schematic Diagrams

System Block Diagram Component Parts And Function Outline Component partFunctionECUControls engine.MCUControls drive motor.ABSSends vehicle speed to HCU.HCUReceives signals from sensor and control switches.Cluster (Cruise control indicator)Illuminate when CRUISE main switch is ON (Built into cluster)Cruise ...

Kia Optima Hybrid: Engine Control System / Heated Oxygen Sensor (HO2S) Description and Operation

Knock Sensor (KS) Repair procedures

Heated Oxygen Sensor (HO2S) Specifications

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Schematic Diagrams

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Heated Oxygen Sensor (HO2S) Specifications