Ignition System Inspection

Spark Plug Cable & Ignition Coil Inspection
1. Visually/physically inspect the spark plug cable and ignition coil related to the misfiring cylinder(s) for the following conditions.
  - Damage, cracks, carbon and flashover
  - Poor connection or damaged harness
  - Connected to the incorrect cylinders at the ignition coil and spark plug
2. Measure the resistance of the spark plug cable related to the misfiring cylinder (s).
  Specification: 5.6 kΩ/m ± 20%
3. Measure the resistance of the primary and secondary ignition coil related to the misfiring cylinder (s).
  Specification: Primary Ignition Coil Resistance: 0.56 ~ 0.68 Ω at 20°C (68°F)
  
  Secondary Ignition Coil Resistance: 6 ~ 8 kΩ at 20°C (68°F)
4. Was a problem found in any of the above areas?
  YES
  - Repair or replace as necessary and go to VERIFICATION OF VEHICLE REPAIR .
  NO
  - Go to next step as below.
Spark Plug Inspection
1. Visually/physically inspect the spark plug related to the misfiring cylinder(s) for the following conditions.
  - Damaged insulation, Worn electrodes, Oil or fuel fouled, Loose terminals and cracks
  - Check for electrode gap: 1.0 - 1.1 mm (0.039 - 0.043 in.)
  - Check if the spark plug for the relevant cylinder is lighter in color than the other plugs.
2. Was a problem found in any of the above areas?
  YES
  - Replace or adjust as necessary and go to VERIFICATION OF VEHICLE REPAIR .
  NO
  - Go to next step as below.