FUEL INJECTOR INSPECTION


  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 injector assembly.

  2. INSPECT INJECTION VOLUME AND LEAKAGE


    1. 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. A01DUEBE01
        Text in Illustration
        *1 Fuel Pressure Regulator
        *2 SST (Union)
        *3 SST (Hose Band)
        *4 SST (Fuel Tube Connector)
        *5 SST (Hose)
        *6 SST (Adapter)
        *7 SST (Clamp)
        *8 Fuel Injector
        *9 Fuel Filter
        *10 SST (3 Way)

        Assemble SST as shown in the illustration.

        SST
        09268-31014   ( 09268-41091, 09268-41120, 09268-41141, 09268-41410, 09268-41500, 09268-41700, 95336-08070 )

      2. Discharge the fuel system pressure Click here.

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

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

        Note

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

      5. A01DMMHE01
        Text in Illustration
        *1 SST (Fuel Tube Connector)
        *2 Fuel Filter

        Connect SST to the fuel pipe.

        SST
        09268-31014   ( 09268-41500 )

        CAUTION:

        Always read the precautions before connecting the fuel tube connector.

      6. A01DS5HE01
        Text in Illustration
        *1 Fuel Pressure Regulator
        *2 SST (Hose)
        *3 No. 2 Fuel Pipe Sub-assembly
        *4 SST (Union)

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

        SST
        09268-31014   ( 09268-41091, 95336-08070 )
        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. A01DP26E01
        Text in Illustration
        *1 SST (Hose)
        *2 SST (Hose Band)
        *3 O-Ring
        *4 SST (Adapter)
        *5 Vinyl Tube
        *6 SST (Clamp)

        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. A01DMQ8E01
        Text in Illustration
        *1 SST (Tie Band)
        *a 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.

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

      12. Put the injector into a graduated cylinder.

        CAUTION:

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

      13. Connect the intelligent tester to the DLC3.

      14. Turn the ignition switch to ON.

        Note

        Do not start the engine.

      15. Turn the intelligent tester on.

      16. Enter the following menus: Powertrain / Engine and ECT / Active Test / Activate the Fuel Pump Speed Control.

      17. A01DMZKE01
        Text in Illustration
        *1 SST (EFI Inspection Wire)
        A01DQPB Connect

        Connect SST (EFI inspection 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 injection volume
        71 to 86 cm3 (4.3 to 5.2 cu. in.) per 15 seconds
        Difference between each injector
        15 cm3 (0.9 cu. in.) or less

        Note


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

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

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

    2. Check for fuel leakage.


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

        Standard fuel leakage
        1 drop or less per 12 minutes

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