Kia Optima Hybrid: Engine Control System / Heated Oxygen Sensor (HO2S) Repair procedures

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Engine Control/Fuel System / Engine Control System / Heated Oxygen Sensor (HO2S) Repair procedures

Inspection

1.	Turn the ignition switch OFF.

2.	Disconnect the HO2S connector.

3.	Measure resistance between the HO2S terminals 4 and 5 [B1/S1]. Measure resistance between the HO2S terminals 3 and 4 [B1/S2].

Check that the resistance is within the specification.

HO2S [Bank 1/Sensor 1] (Linear type)

Item	Specification
Heater Resistance (?)	2.5 ~ 4.0 [20°C(68°F)]

HO2S [Bank 1/Sensor 2] (Binary type)

A/F Ratio (?)	Output Voltage(V)
RICH	Approx. 0.92
LEAN	Approx. 0.04

Item	Specification
Heater Resistance (?)	3.3 ~ 4.1?[21°C(69.8°F)]

Removal

1.	Turn the ignition switch OFF and disconnect the battery negative (-) terminal.

Disconnect the connector (A), and then remove the sensor (B).

Note that the SST (Part No.: 09392-2H100) is useful when removing the heated oxygen sensor.

[Bank 1 / Sensor 1]

[Bank 1 / Sensor 2]

Installation

•	Install the component with the specified torques.

•	Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.

•	Do not use a cleaner, spray, or grease to sensing element and connector of the sensor because oil component in them may malfunction the sensor performance.

•	Sensor and its wiring may be damaged in case of contacting with the exhaust system (Exhaust Manifold, Catalytic Converter, and so on).

Install in the reverse order of removal.

Heated oxygen sensor installation :

39.2 ~ 49.1 N.m (4.0 ~ 5.0 kgf.m, 28.9 ~ 36.2 lb-ft)

Heated Oxygen Sensor (HO2S) Schematic Diagrams

Circuit Diagram ...

Accelerator Position Sensor (APS) Description and Operation

Description Accelerator Position Sensor (APS) is installed on the accelerator pedal module and detects the rotation angle of the accelerator pedal. The APS is one of the most important sensors in engine ...

Other information:

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

Specifications ItemsSpecificationsRated voltage5VLoadMax. 1mA (When head lamp lighting)Illuminations (LUX)501.42 ± 0.31V1002.63 ± 0.58V1503.84 ± 0.84V ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Instrument Cluster Components and Components Location

Components Connector Pin Information No.DescriptionNo.Description1-21Immobilizer input2Heated wheel indicator input22Fuel sendor (+) input3Aig bag (+) input23Trip switch 2 (+) input(Trip button)4Speed output (-) (4P outpput)24Rheostat switch up input5Oil pressure switch input (-)25Rheostat switch down ...