Engine Electrical System

Ignition Coil

4steps
~24min
2/5difficulty
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 4

Specifications

Specification

Item Specification
Secondary coil [at 1000 rpm engine speed] Input voltage (V) 13,5
Delay time (ms) 3,94
Spark current (mA) Over 96
Spark duration (ms) Over 1.45
Pin 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.

Circuit Diagrams

Wiring Diagram

Connector Type

Repair Procedures

Removal

  1. Turn the ignition switch OFF and disconnect the negative (-) battery terminal.

  2. Remove the engine cover.

  3. Disconnect the ignition coil connectors (A).

  4. Remove the ignition coil by loosening the mounting bolts (B).

Installation

  1. Install in the reverse order of removal.

    Ignition coil mounting bolt:

    9,8–11.8 N·m

Test yourself

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