FUEL INJECTOR INSPECTION


  1. INSPECT FUEL INJECTOR ASSEMBLY


    1. Inspect injector resistance.


      1. Using an ohmmeter, measure the resistance between the terminals.

        Resistance
        11.6 to 12.4 Ω at 20°C (68°F)

        If the resistance is not as specified, replace the injector.

    2. Inspect the injection volume.

      CAUTION:

      This test involves high-pressure fuel and electricity. Take all precautions regarding safe handling of both the fuel and the electricity. Perform this test in a safe area, and avoid any sparks or flames. Do not smoke.


      1. A0138PFE02

        Install the fuel tube connector to SST (hose), then connect the tube connector to the fuel pipe (the vehicle side).

        SST
        09268-41048   ( 95336-08070, 90467-13001, 09268-41500 )
      2. A0135VTE02

        Install the O-ring to the fuel injector.

      3. Connect SST (adaptor and hose) to the injector, and hold the injector and union with SST (clamp).

        SST
        09268-41048   ( 95336-08070, 90467-13001, 09268-41130, 09268-41310 )

      4. Put the injector into a graduated cylinder.

        CAUTION:

        Install a suitable vinyl tube onto the injector to prevent gasoline splashing.

      5. Operate the fuel pump (turn the ignition switch on).

      6. A0138I0E02

        Connect SST (wire) to the injector and the battery for 15 seconds, and measure the injection volume with the graduated cylinder. Test each injector 2 or 3 times.

        SST
        09842-30080
        Volume
        47 to 58 cm3 (2.87 to 3.54 cu in.) in 15 seconds
        Difference between each injector
        15 cm3 (0.9 cu in.) or less

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

    3. A0137NH

      Check for leakage.


      1. In the condition above, disconnect the tester probes of SST (wire) from the battery and check for fuel leakage from the injector.

        Fuel drop
        1 drop or less in 5 minutes