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SFI System (Service Information): Injector: Inspection

  1. INSPECT INJECTOR INJECTION 
    CAUTION: Keep the injector clean of sparks during the test.
    1. Disconnect the fuel inlet hose (fuel tube connector) from the fuel filter.
    2. Connect SST (attachment and hose) to the fuel tube.

      SST 09268-41047 (09268-52011)

      Fig 1: Connecting SST To Fuel Tube
      G02650593Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the pressure regulator from the delivery pipe.
    4. Install the O-ring to the fuel inlet of the pressure regulator.
    5. Connect SST (hose) to the fuel inlet of the pressure regulator with SST (union) and the 2 bolts.
      Fig 2: Connecting SST (Hose) To Fuel Inlet Of Pressure Regulator With SST
      G02650594Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      SST 09268-41047 (09268-41091)

      Torque: 7.5 N.m (76 kgf.cm, 66 in..lbf) 

    6. Connect the fuel return hose to the fuel outlet of the pressure regulator.
    7. Install the O-ring to the injector.
    8. Connect SST (adaptor and hose) to the injector, and hold the injector and union with SST (clamp).
      Fig 3: Connecting SST To Injector
      G02650595Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      SST 09268-41047 (09268-41110, 09268-41300)

    9. Put the injector into the graduated cylinder.
      CAUTION: Install a suitable vinyl hose onto the injector to prevent gasoline from splashing out.
    10. Connect a hand-held tester to the Controller Area Network Vehicle Interface Module (CAN VIM). Then connect the CAN VIM to the Date Link Connector 3 (DLC3).
      Fig 4: Connecting Hand-Held Tester To Date Link Connector (DLC3)
      G02650596Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    11. Connect the battery negative (-) cable to the battery.
    12. Turn the ignition switch ON, and push the hand-held tester main switch ON.
      NOTE: Do not start the engine.
    13. Enter the following menus: DIAGNOSIS / ENHANCED OBDII / ACTIVE TEST / FUEL PUMP / SPD
    14. Please refer to the hand-held tester operator's manual for further details.
    15. Connect SST (wire) to the injector and battery for 15 seconds, and measure the injection volume with a graduated cylinder. Test each injector 2 or 3 times.

      SST 09842-30070

      Volume: 56 to 69 cm 3  (3.4 to 4.2 cu in.) per 15 seconds 

      Difference between each injector: 13 cm 3  (0.8 cu in.) or less 

      If the injection volume is not as specified, replace the injector.

      Fig 5: Measuring Injection Volume
      G02650597Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT LEAKAGE 
    1. Under the above conditions, disconnect the tester probes of SST (wire) from the battery and check fuel leakage from the injector.
      Fig 6: Checking Fuel Leakage From Injector
      G02650598Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      SST 09842-30070

      Fuel drop: 1 drop or less per 12 minutes 

    2. Turn the ignition switch off.
    3. Disconnect the negative (-) terminal cable from the battery.
    4. Remove the SST and fuel tube connector.

      SST 09268-41047, 09842-30070

    5. Disconnect the hand-held tester and CAN VIM from the DLC3.
    6. Reconnect the fuel inlet pipe to the fuel tube.
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