Inspect Spark Plug

Remove the ignition coil connector (A).

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

Fig 2: Identifying Ignition Coil
Courtesy of HYUNDAI MOTOR CO.

NOTE: When removing the ignition coil connector, pull the lock pin (A) and push the clip (B).

Fig 3: Pushing Connector Clip
Courtesy of HYUNDAI MOTOR CO.
Remove the ignition coil (B).
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

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