Fuel Injector Inspection


  1. INSPECT INJECTOR ASSEMBLY

  2. INSPECT INJECTION VOLUME AND LEAKAGE

Fuel Injector -- Inspection



1. INSPECT INJECTOR ASSEMBLY


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.2Tr-Fe Fuel.Fuel Injector.Fuel Injector Inspection

  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.


2. INSPECT INJECTION VOLUME AND LEAKAGE
CAUTION:
  1. This test involves high-pressure fuel and electricity.
  2. Take every precaution regarding safe handling of both the fuel and the electrical parts.
  3. Perform this test in a safe area, and avoid any sparks or flame.
  4. Do not smoke.


  1. Assemble SST as shown in the illustration.

    SST
    09268-41048(09268-41091,09268-41110,09268-41120,09268-41500,95336-08070)


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.2Tr-Fe Fuel.Fuel Injector.Fuel Injector Inspection

  1. Discharge the fuel system pressure (Toyota Fortuner RM000000YLB005X_01_0001.html).

  1. Disconnect the fuel main tube (fuel tube connector) from the fuel filter.

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

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


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.2Tr-Fe Fuel.Fuel Injector.Fuel Injector Inspection

  1. Connect SST to the fuel filter.

    CAUTION:
    Always follow the precautions (Toyota Fortuner RM000000YL4009X.html) before connecting the fuel tube connector (quick type).


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.2Tr-Fe Fuel.Fuel Injector.Fuel Injector Inspection

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

    Torque:
    7.5 N*m{76 kgf*cm, 66 in.*lbf}

  1. Install the O-ring to the injector.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.2Tr-Fe Fuel.Fuel Injector.Fuel Injector Inspection

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

    SST
    09268-41048(09268-41110)

  1. Put the injector into a graduated cylinder.

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

  1. Operate the fuel pump.

    1. Turn the ignition switch ON.

      NOTICE:
      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.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.2Tr-Fe Fuel.Fuel Injector.Fuel Injector Inspection

  1. 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(95333-06030)
    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
    NOTICE:
    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.


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.2Tr-Fe Fuel.Fuel Injector.Fuel Injector Inspection

  1. 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