Resistance Inspection

1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION ).
2. Remove the intake manifold. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION ).
3. Disconnect the fuel injector connector.
4. 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 ).