Inspect Spark Plug

Disconnect the ignition coil connectors (A).

Fig 1: Identifying Ignition Coil Connectors
Courtesy of HYUNDAI MOTOR CO.

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 And Connector
Courtesy of HYUNDAI MOTOR CO.
Remove the ignition coils (A).
Tightening torque:

3.9 ~ 5.9N.m (0.4 ~ 0.6kgf.m, 2.9 ~ 4.3lb-ft)

Fig 3: Identifying Ignition Coils
Courtesy of HYUNDAI MOTOR CO.
Using a spark plug socket, remove the spark plug.
CAUTION: Be careful that no contaminates enter through the spark plug holes.

Inspect the electrodes (A) and ceramic insulator (B).

Fig 4: Identifying Electrodes And Ceramic Insulator

Courtesy of HYUNDAI MOTOR CO.

Inspection Of Electrodes

ELECTRODES CONDITION REFERENCE CHART

Condition	Dark deposits	White deposits
Description	Fuel mixture too rich Low air intake	Fuel mixture too lean Advanced ignition timing Insufficient plug tightening torque