INSPECT FUEL INJECTOR ASSEMBLY

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

Standard Resistance

STANDARD RESISTANCE SPECIFICATION

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.

Fig 1: Identifying Fuel Injector Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Inspect the injection volume.
CAUTION: 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: Connecting SST To Fuel Pipe
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Install the O-ring to the fuel injector.
5. Install SST and the tube to the fuel injector.
  SST 09268-31012 (09268-41300, 09268-41500, 09268-41600, 90467-13001, 95336-08070)
  
  Fig 5: Identifying SST And Tube To Fuel Injector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Put the injector into a graduated cylinder.
  CAUTION: Install a strong rubber tube onto the injector to prevent gasoline from splashing.
7. Operate the fuel pump (turn the engine switch on (IG)).
  
  Fig 6: Connecting SST (Wire) To Injector And Battery
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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 cm ³ (5.0 to 6.0 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 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.
  Standard fuel drop:
  
  1 drop or less in 12 minutes
  
  If the fuel drop is not as specified, replace the injector assembly.
  
  Fig 7: Checking For Fuel Drop
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Fuel Injector: Inspection

Use the Manual With the Right Hardware

When to See a Mechanic