Kia Optima DL3 Quiz
Engine Electrical System

Ignition Coil

In this manual: Engine Electrical System
General Information — 8Advanced Driver Assistance System (ADAS) — 21Maintenance — 27Engine Mechanical System — 45Engine Electrical System — 11Emission Control System — 11Engine Control System/Fuel System — 25Automatic Transmission — 20Drive Shaft and Axle — 7Suspension System — 22Steering — 7Restraints — 11Brake System — 22Body (Interior and Exterior) — 116Body Electrical System — 90Heating, Ventilation, and Air Conditioning — 32
4steps
~24min
2/5difficulty
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 4

Description and Operation

Description

The ignition coil is an induction coil in the engine ignition system that converts the low battery voltage to the high voltage required to produce an electric spark at the spark plugs to ignite the fuel. Some coils have an internal resistor, while others rely on a resistor wire or external resistor to limit the current flowing through the coil from the 12 V battery supply.

Specifications

Specification

Item Specification
Primary Winding Resistance (Ω) 0,75 ± 15% [20 °C]
Secondary Winding Resistance (kΩ) 5,9 ± 15% [20 °C]

Circuit Diagrams

Wiring Diagram

Repair Procedures

Removal

  1. Disconnect the negative (-) battery terminal.

  2. Remove the engine cover.

  3. Disconnect the ignition coil connector (A).

  4. Remove the ignition coil (A).

    Tightening Torque: 9.8–11.8 N·m

Installation

  1. Install in the reverse order of removal.

Inspection

  1. Measure the primary coil resistance between terminals 1 and 2.

    Standard Value: 0.75 Ω ± 15 %

Test yourself

A quick Kia Optima DL3 quiz: every answer comes with an explanation and a link to the manual page.