Spark Plug Inspection

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 Honda Crosstour, 2014 Honda Crosstour, 2013 Honda Crosstour, 2012 Honda Crosstour, and 2011 Honda Accord Crosstour. However, it is still accessible from the selected car via links, so may be relevant.

Remove the ignition coils (see IGNITION COIL AND SPARK PLUG REMOVAL/INSTALLATION ).
Remove the spark plugs, then inspect the electrodes and the ceramic insulator.
- Burned or worn electrodes may be caused by these conditions:
  - Advanced ignition timing
  - Loose spark plug
  - Plug heat range too hot
  - Insufficient cooling
- Fouled plugs may be caused by these conditions:
  - Retarded ignition timing
  - Oil in combustion chamber
  - Incorrect spark plug gap
  - Plug heat range too cold
  - Excessive idling/low speed running
  - Clogged air cleaner element
  - Deteriorated ignition coils
    
    Fig 1: Identifying Spark Plug
    Courtesy of AMERICAN HONDA MOTOR CO., INC.
Replace the plug at the specified interval, or if the center electrode (A) is rounded, or if the spark plug gap (B) is out of specification, or if the spark plug electrode is dirty or contaminated. Use only the spark plug listed.
NOTE:
- Do not adjust the gap of iridium tip plugs.
- Do not use a plug cleaner.
  Spark Plugs
  
  NGK: ILZKR7811
  
  DENSO: SXU22HCR11
  
  Electrode Gap
  
  Standard (New): 1.0-1.1 mm (0.039-0.043 in)
  
  Fig 2: Identifying Spark Plug Electrode Gap
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
Install the spark plugs and the ignition coils (see Ignition Coil and Spark Plug Removal/Installation ).