Resistance Inspection
WARNING: This page is about a different car, the 2014 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
- Measure the resistance of the spark plug using a tester as shown in the figure.
- If not within specification, replace the spark plug.
Spark plug resistance [25°C {77 °F}]
3.0-7.5 kilohms
Courtesy of MAZDA MOTORS CORP.