SFI System: Injector: Inspection

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

   Courtesy 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.

   SST 09268-41047 (09268-41091)

   Torque: 7.5 N.m (80 kgf.cm, 66 in.lbf) 

6. Connect the fuel return hose to the fuel outlet of the pressure regulator.
   Fig 2: Removing Pressure Regulator

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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).

   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.
   Fig 3: Installing O-Ring

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
10. Connect a TOYOTA hand-held tester to the DLC3.
11. Connect the battery negative (-) cable to the battery.
12. Turn the ignition switch ON, and push the TOYOTA hand-held tester main switch ON.
    Fig 4: Connecting Hand-Held Tester To DLC3

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NOTE: Do not start the engine.
13. Select the ACTIVE TEST mode on the TOYOTA hand-held tester.
14. Please refer to the TOYOTA 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 - 69 cm ³  (3.4 - 4.2 cu in.) per 15 second 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: Connecting SST (Wire) To Injector And Battery

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   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 TOYOTA hand-held tester from the DLC3.
6. Reconnect the fuel inlet pipe to the fuel tube.

Fig 6: Inspecting Leakage

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002