Hyundai Sonata LF: Ignition System / Spark Plug Specifications

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...

Spark Plug Repair procedures

Inspection [On vehicle inspection] 1. Accelerate the engine to about 3,000 rpm 3 times or more. 2. Remove the spark plug. 3. Check the spark plug visually...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Clutch Actuator Assembly Description and Operation

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Hyundai Sonata LF 2014-2019 Service Manual: Description and Operation

Description System Overview The System offers the following features: - Human / machine interface through a 1-stage button, for terminal switching and engine start. - Control of external relays for ACC / IGN1 / IGN2 terminal switching and STARTER, without use of mechanical ignition switch...