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: CVVT (Continuous Variable Valve Timing) System

Description and operation Description Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load. By controlling CVVT, the valve over-lap or under-lap occurs, which makes better fuel economy and reduces exhaust gases (NOx, HC) and improves engine performance through reduction of pumping loss, internal EGR effect, improvement of combustion stability, improvement of volumetric efficiency, and increase of expansion work.

Kia Stinger (CK) 2018-2023 Service Manual: 27 Brake Control Solenoid Valve (27/B_VFS)

Specifications Specifications Item Specification Control type N/L (Normal Low) Control pressure kpa (kgf/cm², psi) 0 - 1,569.06 (0 - 16, 0 - 227.57) Current (mA) 0 - 1,100 Coil resistance (Ω) 5.