FUEL INJECTOR INSPECTION


  1. INSPECT INJECTOR ASSEMBLY


    1. Measure the resistance between the terminals.

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

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

  2. INSPECT INJECTION VOLUME AND LEAKAGE


    1. A01J5QRE01

      Check the injector injection.

      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 or flame.

      • Do not smoke.


      1. 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.

      3. Disconnect the fuel inlet hose (fuel tube connector) from the fuel filter.

      4. Remove the bolt and disconnect the fuel pressure regulator from the fuel delivery pipe.

        Note

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

      5. A01J6RKE01

        Connect SST to the fuel filter.

        SST
        09268-31014   ( 09268-41500 )

        CAUTION:

        Always read the precautions before connecting the fuel tube connector.

      6. A01J528E01

        Connect the SST (hose) to the fuel inlet of the pressure regulator with another SST (union) and the 2 bolts.

        Torque:
        9.0 N*m  { 92 kgf*cm, 80 in.*lbf }

      7. Connect the fuel return hose to the fuel outlet of the pressure regulator.

      8. A01J3GAE01

        Install a new O-ring to the injector.

      9. Connect SST (adapter and hose) to the injector, and hold the injector and adapter with SST (clamp).

        SST
        09268-31014   ( 09268-41141, 09268-41410, 09268-41700, 95336-08070 )
      10. A01J4MEE01

        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.

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

      12. Install a vinyl tube to the injector.

        CAUTION:

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

      13. Put the injector into a graduated cylinder.

        Tech Tips

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

      14. Operate the fuel pump.

      15. A01J5LXE01

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

        SST
        09842-30080
        Standard volume
        Injection Volume Difference Between Each Injector

        76 to 91 cm3(4.6 to 5.5 cu in.) per 15 seconds

        15 cm3(0.9 cu in.) or less

        Note


        • Make sure that SST (EFI inspection wire H) is securely connected.

        • Always turn the voltage on and off on the battery side, not the fuel pump side.

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

    2. A01J7ECE02

      Check the rate of fuel leakage.


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

        Standard fuel leakage
        1 drop or less per 12 minutes