Hyundai i-30: Ignition System / Description and operation

The ignition coil is a kind of small transformer that transforms the battery voltage to 30 kV or more to create a spark in the spark plug gap in the cylinder.

The igniter embedded in the ignition coil includes the power transistor and it is an electronic switch whose electric current is controlled by the Engine Control Module (ECM) signal.

The ignition timing is controlled by the ECM and the standard ignition timing data depending on the engine operating condition is stored in the ECM memory.

The engine operating conditions (speed, load, warm-up state, etc.) are detected by the various sensors.

Based on these sensor signals and the ignition timing data, when the ECM applies the ignition signal to the ignition coil for a certain period of time, igniter is energized and current flows and rises gradually to the primary coil and the magnetic filed is produced.

When the current in the primary coil is cut off by the ignition signal of the ECM, the rapid change of the magnetic flux by the mutual induction action is induced to the secondary coil and high voltage is generated depending on the coil winding ratio.

This high voltage generated from the secondary coil is caught in the spark plug gap and discharges as the electric field is destroyed to generate a spark.

Ignition System

..

Troubleshooting

..

Other information:

Hyundai i30 (PD) 2018-2024 Owner's Manual: Front fog lamp

■ Type A ■ Type B 1. Loosen the pin-type retainers of the under cover and then remove the undercover. 2. Reach your hand into the back of the front bumper. 3. Disconnect the power connector from the socket. 4. Remove the bulb-socket from the housing by turning the socket counterclockwise until the tabs on the socket align with the slots of the housing...

Hyundai i30 (PD) 2018-2024 Service Manual: Front Seat Belt Buckle

Components and components location Component Location 1. Front seat belt buckle Repair procedures Replacement 1. Remove the front seat assembly. (Refer to Front Seat - "Front Seat Assembly") 2...