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: Audio Remote Control Repair procedures


Inspection 1. Check the audio remote control switch (A) for resistance between connector terminals in each switch position. [LH-Audio] [LH-Mute] [Audio] SwitchConnector terminalResistance (±5%)Volume down2-76.81 k?Volume up2-74.61 k?Mode2-72.11 k?Seek up2-71.11 k?Seek down2-7430 ? [Bluetooth + Voice] ...

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


High Voltage Shutoff Procedure     Shut off the high voltage circuit before doing any work related with the high voltage system (Battery Pack Assembly, Power Relay Assembly, HPCU, BMS ECU, Hybrid Drive Motor, Inverter, HSG, LDC Power Cable, Electric Compressor, and so on). 1. Turn the ignition ...

© 2025 Copyright www.koptimatfhev.com