Spark Plug

Remove the ignition coil connector (A).

Fig 1: Identifying Ignition Coil Connector
Courtesy of HYUNDAI MOTOR CO.
Remove the ignition coil.
Using a spark plug socket, remove the spark plug.
CAUTION: Be careful that no contaminates enter through the spark plug holes.
When replacing the spark plug, always use the long reach type spark plug.
Do not use a short reach type.
1. Color Marking (Tip).
  - [2.7L]
    Unleaded : Yellow Marking
    
    Leaded : Green Marking
  - [Others]
    Marking Color is different or does not exist
2. Length (Tip-Tip / PT Length).
  - 2.7L: 83.2mm/ 26.5mm
  - [Others]
    The length is different from the specification above.
3. Part ID.
  - [2-7L]
    Unleaded : ILFR5B11
    
    Leaded : LFR5A