FUEL INJECTOR (for Port Injection): Inspection

INSPECT FUEL INJECTOR ASSEMBLY

Check the resistance of the injector.

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

Standard resistance

STANDARD RESISTANCE

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

If the resistance is not as specified, replace the injector.

Fig 1: Identifying Fuel Injector Connector Terminals

Inspect the injection volume.
CAUTION: This test involves high-pressure fuel and electricity. Take all precautions regarding safe handling of both the fuel and electricity components. Perform this test in a safe area, and avoid any sparks or flames. Do not smoke.
1. Remove the fuel pipe clamp.
  
  Fig 2: Locating Fuel Pipe Clamp
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the fuel tube.
  NOTE: Do not use any tools in this procedure.
  
  HINT:
  
  If the connector and tube are stick, pinch the connector and push and pull the tube to disconnect them.
  
  Fig 3: Disconnecting Fuel Tube
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Connect SST to the vehicle side fuel pipe.
  SST 09268-31012 (09268-41500, 90467-13001, 95336-08070, 09268-41300, 09268-41600)
4. Install a new the O-ring to the fuel injector.
  
  Fig 4: Identifying O-Ring And Fuel Injector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Install SST and the tube to the fuel injector.
  SST 09268-31012 (09268-41500, 90467-13001, 95336-08070, 09268-41300, 09268-41600)
  
  Fig 5: Installing 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)).
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:
  
  84 to 102 cc (5.1 to 6.2 cu. in.) per 15 seconds
  
  Difference between each injector: 18 cc (1.1 cu. in.) or less
  
  If the injection volume is not as specified, replace the injector.
  
  Fig 6: Connecting SST (Wire) To Injector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Check for leakage.
1. In the condition above, disconnect the tester probes of SST (wire) from the battery and check for fuel leakage from the injector.
  Standard fuel drop:
  
  1 drop or less in 20 minutes
  
  Fig 7: Checking Fuel Leakage From Injector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002