Kia Optima: Description 
		and Operation - Ignition System - Engine Electrical System - Kia Optima TF 2011-2025 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:

Installation
1. Install the heater control unit. 2. Install the center fascia panel. 3. Install the crash pad garnish. ...

Inspection
1. Measure the pressure of high pressure line by measuring voltage output between NO.1 and NO.2 terminals. 2. Inspect the voltage value whether it is sufficie ...

Tachometer
The tachometer indicates the approximate number of engine revolutions per minute (rpm). Use the tachometer to select the correct shift points and to prevent lugging the engine and/or overrevvin ...

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