April 5, 2026: LEMON Manuals is launched! Read the announcement.

Resistance Inspection

Measure the resistance of the spark plug using a tester as shown in the figure.
- If not within the specification, replace the spark plug.
  Spark plug resistance [25°C {77°F}]
  
  3.0-7.5 kilohms
  
  Fig 1: Measuring Resistance Of Spark Plug
  Courtesy of MAZDA MOTORS CORP.