Hyundai Elantra: Engine Control System / Knock Sensor (KS) Repair procedures

Removal
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.
1.
Installation is reverse of removal.

Knock sensor installation bolt :
18.6 ~ 23.5 N.m (1.9 ~ 2.4 kgf.m, 13.7 ~ 17.4 lb-ft)

Knock Sensor (KS) Schematic Diagrams
Circuit Diagram ...

Heated Oxygen Sensor (HO2S) Description and Operation
Description Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed both upstream and downstream of the Catalytic Converter. It varies in accordance with the air/fuel rat ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Cowl Side Trim Components and Components Location
Component Location 1. Cowl side trim ...

Hyundai Elantra AD (2016-2020) Owners Manual: Smart Cruise Control System
1. Cruise indicator 2. Set speed 3. Vehicle-to-vehicle distance To see the SCC screen on the LCD display in the cluster, select Assist mode (). For more details, refer to "LCD Display Modes" in chapter 3. The Smart Cruise Control system allows you to program the vehicle to maintain ...

© 2018-2025 www.helantraad.com