Kia Optima Hybrid: Engine Control System / 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 to “Cooling System” in EM group).
4.
Disconnect the knock sensor connector (A).

5.
Remove the intake manifold (Refer to “Intake And Exhaust System” in EM group).
6.
Remove the mounting bolt (A), and then remove the sensor from the cylinder block.

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.
1.
Install in the reverse order of removal.

Knock sensor mounting bolt:
18.6 ~ 23.5 N.m (1.9 ~ 2.4 kgf.m, 13.7 ~ 17.4 lb-ft)

Knock Sensor (KS) Schematic Diagrams

Circuit Diagram ...

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 ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Description and Operation


Function Audio Bluetooth System General Feature • This audio system supports Bluetooth®hands-free and stereo-headset features. - HANDS-FREE feature: Making orreceiving calls wirelessly throughvoice recognition. • The phone must be paired to the system before using the hands-free feature. - STEREO-HEADSET ...

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


Specification Ignition System ItemsSpecificationIgnition coilPrimary resistance0.62 ± 10 % (?)Secondary resistance7.0 ± 15 % (k?)Spark plugsTypeFXU16HR11Gap1.0 ~ 1.1 mm (0.0394 ~ 0.0433 in.) Charging System ItemsSpecificationAuxiliary 12V batteryType54-28GRCold cranking amperage [at -18°C(-0.4°F)]600AReserve ...

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