Kia Optima: Description 
		and Operation - Ignition System - Engine Electrical System - Kia Optima TF 2011-2019 Service ManualKia Optima: Description and Operation

Description

Ignition timing is controlled by the electronic control ignition timing system. The standard reference ignition timing data for the engine operating conditions are preprogrammed in the memory of the ECM (Engine Control Module).

The engine operating conditions (speed, load, warm-up condition, etc.) are detected by the various sensors. Based on these sensor signals and the ignition timing data, signals to interrupt the primary current are sent to the ECM. The ignition coil is activated, and timing is controlled.
Ignition System
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Repair procedures
On-vehicle Inspection Spark Test 1. Disconnect the ignition coil connectors (A). 2. Remove the ignition coils (A). ...

See also:

Removal and Installation
1. Remove the engine cover. 2. Disconnect the battery negative terminal (A). Tightening torque :4.0 ~ 6.0N.m (0.4 ~ 0.6kgf.m, 3.0 ~ 4.4lb-ft) ...

General Service Information
Protection Of The VehicleAlways be sure to cover fenders, seats, and floor areas before starting work. The support rod must be inserte ...

Schematic Diagrams
Schematic Diagram ...

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