SFI System: Injector: Inspection

Fig 1: Inspecting Injector Inspection

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Purchase the new fuel tube and take out the fuel tube connector from its pipe.

   Part No. 23901-22010

   Fig 2: Identifying Fuel Tube Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Connect SST (hose) and fuel tube connector to the fuel pipe.

   SST 09268-41047

   CAUTION: Perform connecting operations of the fuel tube connector (quick type) after observing the precautions.
   Fig 3: Connecting SST & Fuel Tube Connector To Fuel Pipe

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Install the grommet and O-ring to the injector.
   Fig 4: Installing Grommet & O-Ring To Injector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Connect SST (union and hose) to the injector, and hold the injector to prevent gasoline from splashing out.

   SST 09268-41047

5. Put the injector into a graduated cylinder.

   HINT:

   Install a suitable vinyl tube onto the injector to prevent gasoline from splashing out.

6. Connect the TOYOTA hand-held tester to the DLC3.
   Fig 5: Connecting Hand-Held Tester To DLC3

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
7. Turn the ignition switch ON and TOYOTA hand-held tester main switch ON.
   NOTE: Do not start the engine.
8. Select the active test mode on the TOYOTA hand-held tester.
9. Please refer to the TOYOTA hand-held tester operator's manual for further details.
10. If you have no TOYOTA hand-held tester, connect the positive (+) and negative (-) leads from the battery to the fuel pump connector (See INJECTOR  ).
11. 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 09842-30080

    • Volume: 47 - 58 cm ³  (2.7 - 3.3 cu in.) per 15 sec. 
    • Difference between each injector: 10 cm ³  (0.6 cu in.) or less 

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

Fig 6: Measuring Injection Volume With Graduated Cylinder

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   SST 09842-30080

   Fuel drop: 1 drop or less per 12 minutes 

   Fig 7: Checking Fuel Leakage From Injector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Turn the ignition switch to LOCK.
3. Disconnect the negative (-) terminal cable from the battery.
4. Remove the SST and fuel tube connector.

   SST 09268-41047

   CAUTION:

   • Perform disconnecting operations of the fuel tube connector (quick type) after observing the precautions.
   • As there is retained pressure in the fuel pipe line, prevent it from splashing inside the engine compartment.
5. Disconnect the TOYOTA hand-held tester from the DLC3.