Resistance Inspection

Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION .)
Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION .)
Remove the plug hole plate. (See PLUG HOLE PLATE 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
- 11.4-12.6 ohms [20°C {68°F}]
- If not within the specification, replace the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION .)