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Home >> Mazda >> 2011 >> 3 Mazdaspeed, 2.3 4 >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System [L3 With TC] >> Fuel Injector Inspection >> Resistance Inspection

Resistance Inspection

  1. Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [L3 WITH TC] ).
  2. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [L3 WITH TC] ).
  3. Remove the fuel delivery pipe. (See FUEL INJECTOR REMOVAL/INSTALLATION ).
  4. Disconnect the fuel injector connectors.
  5. Measure the resistance of the fuel injector.

    Fuel injector resistance 

    1.0-1.2 ohms [20°C {68°F}] 

    • If not as specified, replace the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION ).
      Fig 1: Identifying Fuel Injector Connector Terminals
      G07868148Courtesy of MAZDA MOTORS CORP.