Resistance Inspection

WARNING: This page is about a different car, the 2020 Mazda CX-30. 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 illustration.

Courtesy of MAZDA MOTORS CORP.

If not within specification, replace the spark plug.

Spark plug resistance [25°C {77°F}]

3.0-7.5 kilohms