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Fuel Injector: Inspection: Inspection

  1. INSPECT FUEL INJECTOR ASSEMBLY 
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        1 - 2 20°C (68°F) 11.6 to 12.4 Ω

        If the result is not as specified, replace the injector assembly.

    2. Inspect the injector injection volume.
      NOTE: Keep the injector away from sparks during this test.
      1. Connect SST (fuel tube connector) to SST (hose), then connect them to the fuel pipe (vehicle side).
        Fig 1: Identifying Fuel Pipe, Retainer, O-Ring & SST's
        GTY280354Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *1 SST
        (Hose)
        *2 SST
        (Clip)
        *3 SST
        (Fuel Tube Connector)
        *4 Fuel Pipe
        *5 Retainer
        *6 O-ring
        • SST: 09268-31012 
          • 09268-41500
          • 90467-13001
          • 95336-08070
      2. Install the O-ring onto the fuel injector assembly.
        Fig 2: Identifying Fuel Injector Assembly, O- Ring, SST Hose, Clip, Adapter, Clamp, Vinyl Tube
        GTY267004Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *1 SST
        (Hose)
        *2 SST
        (Clip)
        *3 SST
        (Adapter)
        *4 SST
        (Clamp)
        *5 Vinyl Tube
      3. Connect SST (adapter and hose) to the injector assembly, and hold the injector assembly and union with SST (clamp).
        • SST: 09268-31012 
          • 09268-41110
          • 09268-41300
          • 90467-13001
          • 95336-08070
      4. Set the injector assembly in a graduated cylinder.
        WARNING: Install a suitable vinyl tube onto the injector assembly to prevent gasoline from spraying.
      5. Operate the fuel pump. Refer to ON-VEHICLE INSPECTION - Step 1 .
      6. Connect SST (wire) to the injector assembly and the battery for 15 seconds, and measure the injection volume with the graduated cylinder. Test each injector 2 or 3 times.
        Fig 3: Connecting SST (Wire), Injector Assembly & Battery
        GTY261409Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *1 SST
        (Wire)
        *a Connect
        • SST: 09842-30080 

        Standard injection volume

        76 to 92 cc (4.6 to 5.6 cu.in.) per 15 seconds

        Standard difference between each injector

        16 cc (1.0 cu.in.) or less

        NOTE: Always do the switching at the battery side.

        If the injection volume is not as specified, replace the injector assembly.

    3. Inspect the fuel leakage.
      1. Disconnect the SST (wire) tester probes from the battery and check the fuel leakage from the injector.

        Standard fuel drop

        1 drop or less per 25 minutes

        If there are excessive leaks, replace the injector assembly.

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