Fuel Injector: Inspection

Standard Resistance 

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

Fig 1: Measuring Resistance Between Injector Terminals

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1. Connect SST (fuel tube connector) to SST (hose), then connect them to the fuel pipe (vehicle side).

   SST 09268-31012 (09268-41500, 90467-13001,95336-08070) 

2. Install the O-ring to the fuel injector.
   Fig 2: Identifying SST (Hose, Fuel Tube Connector And Clip) And Fuel Pipe

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Connect SST (adapter and hose) to the injector, and hold the injector and union with SST (clamp).

   SST 09268-31012 (95336-08070, 09268-41110, 09268-41130, 09268-41400) 

   Fig 3: Connecting SST (Adapter And Hose) To Injector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Put the injector into the graduated cylinder.
   CAUTION: Install a suitable vinyl tube onto the injector that will contain gasoline spray.
5. Operate the fuel pump.
6. 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 09842-30080 

   Injection Volume 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   Positive terminal - Ground terminal	per 15 seconds	76 to 92 cm3 (4.6 to 5.6 cu in.)

   Standard difference between each injector: 16 cm ³  (1.0 cu in.) or less 

Fig 4: Measuring Injection Volume

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the SST (wire) tester probes from the battery and check the fuel leakage from the injector.

   Standard fuel drop: 

   1 drop or less per 12 minutes 

2. Turn the ignition switch off.
3. Disconnect the cable from the negative (-) battery terminal.
4. Remove SST.
5. Disconnect the Techstream from the DLC3.
6. Reconnect the fuel inlet hose (rear fuel pipe) to the fuel main tube.

Fig 5: Inspecting Fuel Leakage

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002