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: Repair procedures
Adjustment Glass Adjustment • Check the glass run channel for damage or deterioration, and replace them if necessary. 1. Remove the rear door trim. (Refer to Rear Door - "Rear Door Trim") 2. Separate the mounting plug hole (A) from the rear door module. ...

Hyundai Elantra AD (2016-2020) Service Manual: Variable Charge Motion Actuator (VCMA) Repair procedures
Inspection 1. Turn ignition switch OFF. 2. Disconnect the VCMA connector. 3. Check that the VCMA is not stuck by foreign material. 4. Measure resistance between motor (+) and (-) control terminals of the motor. 5. Check that the resistance is within the specification. Sp ...