SFI System (1GR-FE): Injector: Inspection

Fig 1: Identifying Injector Components

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1. Obtain a new No. 1 fuel pipe (part No. 23801 -31070) and take the fuel tube connector out of the pipe.
   Fig 2: Identifying Fuel Tube Connector

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2. Install the fuel tube connector to the SST (hose), then connect the tube connector and fuel pipe.

   SST 09268-41047(95336-08070)

   CAUTION: Connect the fuel tube connector (quick type) after observing the precautions. 
3. Remove the pressure regulator from the delivery pipe.
4. Install the O-ring to the fuel inlet of the pressure regulator.
   Fig 3: Installing Fuel Tube Connector To SST

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5. Connect the SST (hose) to the fuel inlet of the pressure regulator with another SST (union) and the 2 bolts.

   SST 09268-41047 (95336-08070, 09268-41091)

   Torque: 9.0 N.m (92 kgf.cm, 80 in.lbf) 

6. Connect the fuel return hose to the fuel outlet of the pressure regulator.
   Fig 4: Connecting SST (Hose) To Fuel Inlet Of Pressure Regulator

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7. Install the O-ring to the injector.
8. Connect SSTs (adaptor and hose) to the injector, and hold the injector and union with SST (clamp).

   SST 09268-41047 (09268-41140, 09268-41400, 95336-08070)

9. Put the injector into a graduated cylinder.
   CAUTION: Install a suitable vinyl tube onto the injector to prevent gasoline from splashing out. 
10. Operate the fuel pump (see FUEL PUMP  ).
    Fig 5: Installing O-Ring To Injector

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11. Connect the 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: 76 to 91 cm ³  (4.6 to 5.5 cu in.) per 15 seconds Difference between each injector: 

    15 cm ³  (0.9 cu in.) or less 

If the injection volume is not as specified, replace the injector.

Fig 6: Measuring Injection Volume With A Graduated Cylinder

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Under the above conditions, disconnect the tester probes of the 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 

Fig 7: Checking Fuel Leakage From Injector

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