Fuel Injector: Inspection: Inspection

INSPECT FUEL INJECTOR ASSEMBLY

Measure the resistance according to the value(s) in the table below.

Fig 1: Identifying Fuel Injector Connector End View

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard Resistance

Tester Connection	Condition	Specified Condition
1 - 2	20°C (68°F)	11.6 to 12.4 Ω

If the result is not as specified, replace the injector assembly.

Inspect the injection volume.
WARNING:
This test involves high-pressure fuel and electricity. Take all precautions regarding safe handling of both the fuel and the electricity. Perform this test in a safe area, and avoid any sparks or flames. Do not smoke.
1. Remove the fuel pipe clamp.
  
  Fig 2: Identifying Fuel Pipe Clamp
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the fuel tube.
  
  Fig 3: Disconnecting Fuel Tube
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Connect SST to the fuel pipe (the vehicle side).
  
  Fig 4: Identifying Fuel Pipe And Fuel Tube Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Install the O-ring to the fuel injector.
  
  Fig 5: Identifying SST And Tube To Fuel Injector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Install SST and the tube to the fuel injector.
  - SST: 09268-31012
    - 09268-41300
    - 09268-41500
    - 09268-41600
    - 90467-13001
    - 95336-08070
6. Put the injector into a graduated cylinder.
  
  Fig 6: Connecting SST (Wire) To Injector And Battery
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  WARNING:
  Install a strong rubber tube onto the injector to prevent gasoline from splashing.
7. Operate the fuel pump (turn the engine switch on (IG)).
8. Connect SST (wire) to the injector and the battery for 15 seconds, and measure the injection volume with the graduated cylinder. Test each injector 2 or 3 times.
  - SST: 09842-30090
  Standard injection volume
  
  83 to 99 cm³ (5.0 to 6.0 cu in.) per 15 seconds
  
  Difference between each injector
  
  16 cm³ (1.0 cu in.) or less
  
  If the injection volume is not as specified, replace the injector assembly.
Check for fuel drop.
1. In the condition above, disconnect the tester probes of SST (wire) from the battery and check for fuel drop from the injector.
  
  Fig 7: Checking Fuel Drop From Injector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard fuel drop
  
  1 drop or less in 12 minutes
  
  If the fuel drop is not as specified, replace the injector assembly.