SFI System: Injector: Inspection

INSPECT INJECTOR
CAUTION: Keep injector clear of sparks during the test.

Fig 1: Inspecting Injector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Prepare a new fuel tube and remove the fuel tube connector from the 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 (Hose) And Fuel Tube Connector To Fuel Pipe
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Install the grommet and O-ring to the injector.
4. Connect SST (union and hose) to the injector, and hold the injector to prevent gasoline from splashing out.
  SST 09268-41047
5. Insert the injector into a graduated cylinder.
  HINT:
  
  Install a suitable vinyl tube onto the injector to prevent gasoline from splashing out.
  
  Fig 4: Connecting SST To Injector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Connect the TOYOTA hand-held tester to the DLC3.
7. Turn the ignition switch ON and the TOYOTA hand-held tester main switch ON.
  
  Fig 5: Connecting Toyota Hand-Held Tester To DLC3
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NOTE: Do not start the engine.
8. Select the active test mode on the TOYOTA hand-held tester.
9. Refer to the TOYOTA HAND-HELD TESTER Operator's Manual for further details.
10. If you do not have a TOYOTA hand-held tester, connect the positive (+) and negative (-) leads from the battery to the fuel pump connector. (See INJECTOR )
  
  Fig 6: Measuring Injection Volume
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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.
INSPECT LEAKAGE
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
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
  
  Fig 7: Inspecting Leakage
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  CAUTION:
  - Perform disconnection 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.