Resistance Inspection

Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .)
Remove the intake manifold. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
Disconnect the fuel injector connector.
Inspect the resistance between fuel injector terminals A and B.

Fig 1: Identifying Fuel Injector Connector Terminals
Courtesy of MAZDA MOTORS CORP.

Fuel injector resistance
- 1.74-2.04 ohms [20 °C {68 °F}]
- If not within the specification, replace the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION .)