Hyundai Creta: Engine Control System / Knock Sensor (KS)

Hyundai Creta GS 2014-2025 Service Manual / Engine Control / Fuel System / Engine Control System / Knock Sensor (KS)

Description and operation

Description

Knocking is a phenomenon characterized by undesirable vibration and noise and 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. At this time, this sensor transfers the voltage signal higher than the specified value to the ECM and the ECM retards the ignition timing. If the knocking disappears after retarding the ignition timing, the ECM will advance the ignition timing. This sequential control can improve engine power, torque and fuel economy.

Specifications

Specification

Item	Specification
Capacitance (pF)	950 ~ 1,350
Resistance(MΩ)	4.87

Schematic diagrams

Circuit Diagram

(M/T)

(A/T)

Repair procedures

Removal

1.	Turn the ignition switch OFF and disconnect the battery negative (-) terminal.

2.	Disconnect the knock sensor connector (A).

3.	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.

Install in the reverse order of removal.

Knock sensor mounting bolt :

18.6 ~ 24.5 N.m (1.9 ~ 2.5 kgf.m, 13.7 ~ 18.1 lb-ft)

Camshaft Position Sensor (CMPS)

Description and operation Description Camshaft Position Sensor (CMPS) is a hall sensor and detects the camshaft position by using a hall element. It is related with Crankshaft ...

Heated Oxygen Sensor (HO2S)

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

Other information:

Hyundai Creta GS 2014-2025 Service Manual: Drive Plate: Repair procedures
Removal and Installation 1. Remove the automatic transaxle. (Refer to Automatic Transaxle System - "Automatic Transaxle") 2. Remove the adapter plate (A) and drive plate (B). Tightening torque ...

Hyundai Creta GS 2014-2025 Owners Manual: Tire rotation
To equalize tread wear, it is recommended that the tires be rotated every 12,000 km (7,500 miles) or sooner if irregular wear develops. During rotation, check the tires for correct balance. When rotating tires, check for uneven wear and damage. Abnormal wear is usually caused by incorr ...