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

Hyundai Creta GS 2014-2024 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 2014-2024 Owners Manual: Snow or icy conditions
You need to keep sufficient distance between your vehicle and the vehicle in front of you. Apply the brakes gently. Speeding, rapid acceleration, sudden brake applications, and sharp turns are potentially very hazardous practices. During deceleration, use engine braking to the fullest ...

Hyundai Creta GS 2014-2024 Service Manual: Rear Wheel Guard: Repair procedures
Replacement • Put on gloves to protect your hands. • When ...