Kia Stinger CK: Engine Control System / Knock Sensor (KS)

Kia Stinger (CK) 2018-2023 Service Manual / Engine Control / Fuel System / Engine Control System / Knock Sensor (KS)

Specifications

Specification

Item	Specification
Capacitance (pF)	850 - 1,150
Resistance (MΩ)	Approx. 1

Description and operation

Description

Knocking is a phenomenon characterized by undesirable vibration and noise that can cause engine damage. Knock Sensor (KS) is installed on the cylinder block and senses engine knocking.

When knocking occurs, the vibration from the cylinder block is applied as pressure to the piezoelectric element, and the sensor produces voltage signal to ECM. On receipt of this signal, ECM will control the ignition timing by retarding the ignition timing and then advancing the ignition timing when the knocking disappears. This sequential control can improve engine power, torque and fuel economy.

Schematic diagrams

Circuit Diagram

Harness Connector

Repair procedures

Inspection

1.	Switch "OFF" the ignition.

2.	Disconnect the knock sensor connector.

3.	Measure resistance between the injector terminals 1 and 2.

Check that the resistance is within the specification.

Specification: About 4.87 MΩ [20°C(68°F)]

Removal

1.	Switch "OFF" the ignition and disconnect the negative (-) battery terminal.

2.	Remove the intake manifold. (Refer to Engine Mechanical System - “Intake Manifold”)

3.	Remove the delivery pipe & injector assembly. (Refer to Fuel Delivery System - "Delivery Pipe")

Remove the knock sensor (A) after loosening the mounting bolt from the cylinder block.

Knock sensor installation bolt :

18.6 - 23.5 N·m (1.9 - 2.4 kgf·m, 13.7 - 17.4 lb·ft)

Installation

•	Install the component to the specified torques.

•	Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing.

1.	Install in the reverse order of removal.

Camshaft Position Sensor (CMPS)

Heated Oxygen Sensor (HO2S)

Other information:

Kia Stinger (CK) 2018-2023 Service Manual: Warning

If the vehicle leaves a lane, the lane marker you cross will blink on the LCD display. If the vehicle moves out its lane because steering torque for assistance is not enough, the line indicator will blink. If all the conditions to activate LKA system are not satisfied, the system will convert to LDW system (Lane Departure Warning) and only warn the driver when the driver crosses the lane lines.

Kia Stinger (CK) 2018-2023 Service Manual: Smart Key System

Specifications Specifications Smart Key Unit Items Specification Rated voltage DC 12 V Operating voltage DC 9 - 16 V Operating temperature -40 - 176°F (-40 - 80°C) Load Max. 4mA (When welcome light function "OFF") RF Receiver Items Specification Frequency 433.