Spark Test

Disconnect the ignition coil connectors (A).

Fig 1: Ignition Coil Connectors
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NOTE: When disconnecting the ignition coil connector, pull out the locking pin (A) and then pull out the connector while pressing the clip (B).

Fig 2: Pulling Out Locking Pin & Ignition Coil Connector
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Remove the ignition coils (A).

Fig 3: Ignition Coils
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Disconnect the injector connectors (A).

Fig 4: Injector Connectors
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Using a spark plug socket, remove the spark plug.
Install the spark plug to the ignition coil.
Ground the spark plug to the engine.

Fig 5: Grounding Spark Plug To Engine
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Check if spark occurs while engine is being cranked.
NOTE: To prevent fuel being injected from injectors while the engine is being cranked, disconnect the injector connector. Crank the engine for no more than 5 ~ 10 seconds.
Inspect all the spark plugs.
Using a spark plug socket, install the spark plug.
Reconnect the injector connectors.
Install the ignition coils.
Tightening torque:

3.9 ~ 5.9 N.m (0.4 ~ 0.6kgf.m, 2.9 ~ 4.3 lb-ft)
Reconnect the ignition coil connectors.

Fig 6: Spark Test Work Flow Chart

Courtesy of KIA MOTORS AMERICA, INC.