Hyundai Elantra: Ignition System / Spark Plug Description and Operation

Hyundai Elantra AD (2016-2020) Service Manual / Engine Electrical System / Ignition System / Spark Plug Description and Operation

Description

A spark plug is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture therein by means of an electric spark, while containing combustion pressure within the engine. A spark plug has a metal threaded shell, electrically isolated from a central electrode by a porcelain insulator.

Ignition Coil Repair procedures

Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the engine cover. 3. Disconnect the ignition coil connector (A). • ...

Spark Plug Specifications

Specification ItemSpecificationTypeELR9IQP9+Gap0.8 ~ 0.9 mm (0.0314 ~ 0.0354 in.) ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Side Airbag (SAB) Module Repair procedures
Removal • The side airbag cannot be disassembled from the seat back assembly, so replace the seat back assembly when replacing the side airbag. 1. Disconnect the battery negative cable and wait for at least 3 minutes before beginning work. 2. Remove the ...

Hyundai Elantra AD (2016-2020) Service Manual: Adaptive Front Lighting System Repair procedures
Removal AFLS Unit 1. Disconnect the negative (-) battery terminal. 2. Remove the glove box housing. (Refer to Body - "Glove Box Housing") 3. Remove the AFLS unit (A) after removing connector and nuts (2EA). Installation AFLS Unit 1. Install the AFLS unit after connecting the conn ...