LEMON Manuals: Even more car manuals for everyone
Home >> Hyundai >> 2012 >> Genesis Coupe 2.0T, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition System - 2.0L >> Repair procedures >> On-Vehicle Inspection >> Inspect Spark Plug

Inspect Spark Plug

  1. Remove the ignition coil connectors (A) and ignition coil.
    Fig 1: Identifying Ignition Coil Connectors
    G06510560Courtesy of HYUNDAI MOTOR CO.
  2. Using a spark plug socket, remove the spark plug.
    CAUTION: Be careful that no contaminants enter through the spark plug holes.
  3. Inspect the electrodes (A) and ceramic insulator (B).
    Fig 2: Identifying Electrodes & Ceramic Insulator
    G06510561Courtesy of HYUNDAI MOTOR CO.

    Inspection Of Electrodes 

    ELECTRODES INSPECTION 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
  4. Check the electrode gap (A).

    Standard 

    Unleaded: 1.0 ~ 1.1 mm (0.0394 ~ 0.0433 in.)

    Fig 3: Checking Electrode Gap
    G06510562Courtesy of HYUNDAI MOTOR CO.
scientia non olet · About LEMON Manuals