Kia Optima: Ignition System / Ignition Coil
Description and operation
An ignition coil is an induction coil in an engine's ignition system which transforms
the battery's low voltage to the high voltage needed to create an electric spark
in the spark plugs to ignite the fuel. Coils have an internal resistor while others
rely on a resistor wire or an external resistor to limit the current flowing into
the coil from the battery 12 V supply.
Specifications
Item
|
Specification
|
Primary Coil Resistance (Ω)
|
0.75 ± 15% [20°C (68°F)]
|
Secondary Coil Resistance (kΩ)
|
5.9 ± 15% [20°C (68°F)]
|
Schematic diagrams
Repair procedures
| 1. |
Disconnect the negative battery (-) terminal.
|
| 2. |
Remove the engine cover.
|
| 3. |
Disconnect the ignition coil connector (A).
| •
|
When removing the ignition coil connector, pull the lock
pin (A) and push the clip (B).
|
|
|
| 4. |
Remove the ignition coil (A).
|
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 Ib-ft)
|
|
| 1. |
Install in the reverse order of removal.
|
| 1. |
Measure the primary coil resistance between terminals 1 and 2.
|
Standard value : 0.75Ω ± 15%
|
|
Description and operation
Description
Ignition timing is controlled by the electronic control ignition timing system.
The standard reference ignition timing data for the engine operat ...
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 th ...
Other information:
Description and operation
Operation Principle
Repair procedures
Removal
1.
Disconnect the vapor hose (A).
2.
Remove the PCV valve (B).
Tightening torque :
1.96 - 2.94 N.m (0.2 - 0.3 kgf.m, 1.45 - 2.17 ...
Air bag Warning Light
This warning light illuminates:
Once you set the ignition switch or Engine Start/Stop Button to the ON position.
- It illuminates for approximately 6 seconds and then goes off.
When there is a malfunction with the SRS.
Recommend you have your vehicle inspected by ...
Ignition System
Spark Plug