FUEL INJECTOR INSPECTION

PROCEDURE


  1. INSPECT FUEL INJECTOR ASSEMBLY


    1. 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 fuel injector assembly.

  2. INSPECT INJECTION VOLUME AND LEAKAGE


    1. Check the injection volume.

      CAUTION:


      • This test involves high-pressure fuel and electricity.

      • Take every precaution regarding safe handling of both the fuel and the electrical parts.

      • Perform this test in a safe area and avoid any sparks and flames.

      • Do not smoke.


      1. A01LC9NC03
        *a SST (Fuel Tube Connector)
        *b SST (Hose)
        *c SST (3 Way)
        *d SST (Union No. 7)
        *e SST (Hose Band)

        Assemble SST as shown in the illustration.

        SST
        09268-31014   ( 09268-41091, 09268-41120, 09268-41500, 09268-41700, 95336-08070 )

      2. Discharge the fuel system pressure.

        Click here

      3. Remove the No. 1 fuel hose from the fuel filter assembly.

        Click here

      4. Remove the 2 bolts and disconnect the fuel pressure regulator assembly from the fuel delivery pipe sub-assembly.

        Note

        Do not disconnect the No. 2 fuel hose from the fuel pressure regulator assembly.

      5. A01LECVC03
        *1 Fuel Filter Assembly
        *a SST (Fuel Tube Connector)

        Connect SST to the fuel filter assembly.

        SST
        09268-31014   ( 09268-41500 )

        CAUTION:

        Always read the precautions before connecting the fuel tube connector (quick type).

        Click here

      6. A01LDK9C01
        *1 Fuel Pressure Regulator Assembly
        *a SST (Hose Band)
        *b SST (Hose)
        *c SST (Union No. 7)

        Connect SST to the fuel pressure regulator assembly with the 2 bolts.

        SST
        09268-31014   ( 09268-41091, 09268-41700, 95336-08070 )
        Torque:
        9.0 N*m  { 92 kgf*cm, 80 in.*lbf }

      7. Install the O-ring to the fuel injector assembly.

      8. A01L8Q3C01
        *a SST (Hose Band)
        *b SST (Adaptor)
        *c SST (Hose)
        *d SST (Clamp)
        *e Vinyl Tube

        Assemble SST as shown in the illustration.

        SST
        09268-31014   ( 09268-41300, 09268-41600, 09268-41700, 95336-08070 )

        Note

        Make sure that SST (adapter) and SST (clamp) are not loose and do not rattle.

      9. A01LCVBC01
        *a SST (Tie Band)
        *b Lock

        Pass SST (tie band) through the loop on the handle of SST (clamp) to secure SST (clamp) to SST (adapter).

        SST
        09268-31014   ( 09268-41800 )

        Note


        • As SST (tie band) does not completely prevent SST (clamp) from becoming loose, do not subject the parts to any impacts while using them.

        • Before using SST (tie band), make sure that there is no deterioration, damage or cracks. If there are any abnormalities, replace SST.

        Tech Tips

        When removing SST (tie band), disengage the lock.

      10. Check that SST (clamp) and SST (adapter) cannot be easily separated.

      11. Install a vinyl tube to the fuel injector assembly.

      12. Put the fuel injector assembly into a graduated cylinder.

        Note

        Install a suitable vinyl tube to the fuel injector assembly to contain any gasoline spray.

      13. Operate the fuel pump.

        Click here

      14. A01LBNEC01
        *a SST (EFI Inspection Wire H)
        B0068HS Connect

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

        SST
        09842-30080
        Standard injection volume
        68 to 82 cc (4.1 to 5.0 cu.in.) per 15 seconds
        Difference between each injector
        14 cc (0.9 cu.in.) or less

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

    2. Check the leakage.


      1. In the condition above, disconnect the test probes of SST (EFI inspection wire H) from the battery and check the fuel leakage rate from the fuel injector assembly.

        Fuel leakage
        1 drop or less per 25 minutes