SFI System: Injector: Inspection

INSPECT INJECTOR INJECTION

Fig 1: Inspecting Injector Injection
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

CAUTION: Keep injector clear of sparks during the test.
1. Disconnect the fuel pipe clamp from the fuel tube connector.
  
  Fig 2: Disconnecting Fuel Pipe Clamp From Fuel Tube Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the fuel inlet tube (fuel tube connector) from the fuel pipe.
  
  Fig 3: Disconnecting Fuel Inlet Tube From Fuel Pipe
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  CAUTION:
  - Disconnect the fuel tube connector (quick type) observing the precaution (see SFI SYSTEM ).
  - As there is retained pressure in the fuel line, prevent it from splashing inside the engine compartment.
3. Purchase a new fuel tube. Remove the fuel tube connector from its pipe.
  Fuel tube: Part No. 23901-22110
  
  Fig 4: Identifying Fuel Tube Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Connect SST (hose) and fuel tube connector to the fuel pipe.
  SST 09268-41047
  
  Fig 5: Connecting SST (Hose) And Fuel Tube Connector To Fuel Pipe
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  CAUTION: Disconnect the fuel tube connector (quick type) observing the precautions (see SFI SYSTEM ).
5. Install the grommet and O-ring to the injector.
6. Connect SST (union and hose) to the injector.
  SST 09268-41047 (09268-41110, 09268-41300)
  
  Fig 6: Connecting SST (Union & Hose) To Injector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
7. Put the injector into a graduated cylinder.
  CAUTION: Install a suitable vinyl hose onto the injector to prevent gasoline from splashing out.
8. Connect the hand-held tester to the DLC3.
  
  Fig 7: Connecting Hand-Held Tester To DLC3
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Connect the hand-held tester to the DLC3.
  2. Connect the battery negative (-) terminal cable to the battery.
  3. Turn the ignition switch ON and push the hand-held tester main switch ON.
    NOTE: Do not start the engine.
  4. Select the ACTIVE TEST mode on the hand-held tester.
    HINT:
    
    Please refer to the hand-held tester operator's manual for further details.
    
    If you have no hand-held tester, connect the positive (+) and negative (-) leads from the battery to the fuel pump connector (see FUEL PUMP ).
9. Connect the battery to the injector with SST (wire) for 15 seconds, and measure the injection volume with a graduated cylinder. Test each injector 2 or 3 times.
  SST 09842-30080
  
  Fig 8: Connecting Battery To Injector With SST
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Injection volume:
  
  76 to 92 cm ³ (4.6 to 5.6 cu in.) per 15 seconds. Difference between each injector: 16 cm ³ (1.0 cu in.) or less
  
  If the injection volume is not as specified, replace the injector.
INSPECT LEAKAGE
1. In the above condition, disconnect the tester probes of SST (wire) from the battery and check the fuel leak from the injector.
  SST 09842-30080
  
  Fig 9: Checking Fuel Leak From Injector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  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 SST and fuel tube connector.
  SST 09268-41047
5. Disconnect the hand-held tester from the DLC3.
6. Reconnect the fuel tube (fuel tube connector).
  CAUTION: Disconnect the fuel tube connector (quick type) observing the precaution (see SFI SYSTEM ).
  
  Fig 10: Reconnecting Fuel Tube
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
7. Reconnect the fuel pipe clamp to the fuel tube connector.
  
  Fig 11: Reconnecting Fuel Pipe Clamp To Fuel Tube Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002