Kia Cadenza YG: Engine Control System / Knock Sensor (KS) Repair procedures

Kia Cadenza YG 2016-2021 Service Manual / Engine Control / Fuel System / Engine Control System / Knock Sensor (KS) Repair procedures

Removal
[Knock Sensor #1 (Bank 1)]
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Disconnect the knock sensor connector (A).

3.
Remove the intake manifold.
(Refer to Engine Mechanical System - "Intake Manifold")
4.
Remove the installation bolt (A), and then remove the sensor from the cylinder block.

[Knock Sensor #2 (Bank 2)]
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Disconnect the knock sensor connector (A).

3.
Remove the intake manifold.
(Refer to Engine Mechanical System - "Intake Manifold")
4.
Remove the installation 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.
   
•
The sensor connector must be installed parallel to the direction of the engine.
1.
Install in the reverse order of removal.
Knock sensor installation bolt:
15.7 ~ 23.5 N.m (1.6 ~ 2.4 kgf.m, 11.6 ~ 17.4 lb-ft)

    Circuit Diagram

    Description Heated Oxygen Sensor (HO2S) consists of the zirconium and the alumina and is installed on upstream and downstream of the Warm-up Catalytic Converter (WCC).

    Other information:

    Kia Cadenza YG 2016-2021 Service Manual: Specifications

    Specification ItemSpecificationUltrasonic sensorVoltage ratingDC 12 VDetecting range30 cm ~ 120 cmOperation voltageDC 9 ~ 16 VOperation currentMAX 300 mAOperation temperature-30°C ~ +80°C (-22°C ~ +176°C)Operation frequency48 ± 5 KHzEffective operating velocity10 KPH (6.

    Kia Cadenza YG 2016-2021 Service Manual: Photo Sensor Repair procedures

    Inspection 1. Ignition "ON" 2. Using the scan tool. 3. Emit intensive light toward photo sensor using a lamp, and check the output voltage change. 4. The voltage will rise with higher intensive light and reduce with lower intensive light.

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