FUEL INJECTOR INSPECTION


  1. INSPECT INJECTOR


    1. A01J559E02

      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.

  2. INSPECT INJECTION VOLUME AND LEAKAGE

    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. A01J57AE01

      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. Disconnect the fuel main tube (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. A01J799E02

      Connect SST to the fuel filter.

      SST
      09268-31014   ( 09268-41500 )

      CAUTION:

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

    6. A01J4Y6E02

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

      SST
      09268-31014   ( 09268-41091, 09268-41700, 95336-08070 )
      Torque:
      7.5 N*m  { 76 kgf*cm, 66 in.*lbf }

    7. Install the O-ring to the injector.

    8. A01J3RSE02

      Assemble SST as shown in the illustration.

      SST
      09268-31014   ( 09268-41110, 09268-41310, 09268-41700, 95336-08070 )

      Note

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

    9. A01J3CNE03

      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 injector.

    12. Put the injector into a graduated cylinder.

      Note

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

    13. Operate the fuel pump.


      1. Turn the ignition switch ON.

        Note

        Do not start the engine.

      2. Push the intelligent tester main switch ON.

      3. Select the Active Test and enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

    14. A01J36SE01

      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 injection volume
      71 to 86 cm3 (4.3 to 5.2 cu. in.) in 15 seconds
      Standard difference between each injector
      15 cm3 (0.9 cu. in.) or less

      Note

      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.

    15. A01J6V3E01

      Check the fuel leakage.


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

        Standard fuel drop
        1 drop or less per 12 minutes