Component Inspection

Check Spark Plugs 

1. Remove all spark plugs.
2. Visually/physically inspect the following items:
   • Check if the spark plug for the relevant cylinder is lighter in color than the other plugs
   • Oil or fuel fouled/damaged insulation/worn electrodes
   • Loose terminals and cracks
   • Check the plug gap: 1.0-1.1 mm (0.039-0.043 in.)
     Fig 1: Inspecting Spark Plug For Damaged And Burned Portions

     
3. Was a problem found in any of the above areas?

   YES

   1. Test with a new spark plug and check for proper operation. If problem is corrected, replace it.

      And go to "VERIFICATION OF VEHICLE REPAIR " procedure.

   NO

   1. Go to "Check Spark Plug Cables" procedure.

Check Spark Plug Cables 

1. Remove all spark plugs.
2. Visually/physically inspect the following items:
   • Damage, cracks and flashover
3. Measure the resistance of the spark plug cables.
   1. Specification: Approx. 9.6~22.4 kΩ/m (3.28 ft) at 20°C (68°F)
      Fig 2: Measuring Resistance Of Spark Plug Cables

      
4. Is the displayed value within the specified value?

   YES

   1. Go to "Check Injector for Blockage or Fuel Leakage" procedure.

   NO

   1. Test with a new spark plug cable and check for proper operation. If problem is corrected, replace it.

   And go to "VERIFICATION OF VEHICLE REPAIR " procedure.

Check Injector for Blockage or Fuel Leakage 

1. Check injector for blockage or fuel leakage.
   CAUTION: Be sure to reduce the fuel pressure before disconnecting the injector, otherwise fuel will spill out.
2. Is there a problem?

   YES

   1. Test with a new injector and check for proper operation. If problem is corrected, replace it.

   And go to "VERIFICATION OF VEHICLE REPAIR " procedure.

   NO

   1. Go to "SYSTEM INSPECTION " procedure.