Section 450 (Engine Fuel System (2UZ-FE)): Inspection

1. Using an ohmmeter, measure the resistance between the terminals.

Resistance: 13.4 - 14.2 Ω at 20°C (68°F) 

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

1. Purchase the new No.1 fuel pipe and take out the fuel tube connector from its pipe.
   NOTE:

   Part No. 23271 - 50190

   Fig 2: Identifying Fuel Tube Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
CAUTION: Perform connecting operations of the fuel tube connector (quick type) after observing the precautions.
Fig 3: Connecting SST And Fuel Tube Connector To Fuel Pipe
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Connect SST and fuel tube connector to the fuel pipe.

   SST 09268 - 41047 (95336-08070)

3. Remove the pressure regulator from the delivery pipe.
4. Install the O-ring to the fuel inlet of the pressure regulator.
5. Connect SST (hose) to the fuel inlet of the pressure regulator with SST (union) and the 2 bolts.
   Fig 4: Connecting SST (Hose) To Fuel Inlet Of Pressure Regulator With Another SST (Union)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Torque: 7.5 N.m (80 kgf.cm, 66 in..lbf) 

6. Connect the fuel return hose to the fuel outlet of the pressure regulator.
7. Install the O-ring to the injector.
8. Connect SST (union and hose) to the injector, and hold the injector and union with SST (clamp)
   Fig 5: Installing O-Ring To Injector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   SST 09268 - 41047 (09268 - 41110, 09268 - 41300, 95336-08070)

CAUTION: Install a suitable vinyl tube onto the injector to prevent gasoline from splashing out.
9. Put the injector into a graduated cylinder.
10. Operate the fuel pump. (See ON-VEHICLE INSPECTION )
11. Connect 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 time.
    Fig 6: Connecting SST (Wire) To Injector And Battery

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    SST 09842 - 30070

    Volume: 56 - 69 cm ³  (3.4 - 4.2 cu in.) per 15 seconds 

    Difference between each injector: 

    13 cm ³  (0.8 cu in.) or less 

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

1. In the condition above, disconnect the tester probes of SST (wire) from the battery and check the fuel leakage from the injector.
   Fig 7: Inspecting Leakage

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   SST 09842 - 30070

   Fuel drop: 1 drop or less per 12 minutes 

1. Using an ohmmeter, measure the resistance between terminal.
   Fig 8: Inspecting Fuel Pump Resistor

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Resistance: 0.70 - 0.76 Ω at 20°C (68°F) 

1. Using an ohmmeter, measure the resistance between terminals 4 and 5.
   Fig 9: Identifying Fuel Pump Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Resistance: 0.2 - 3.0 Ω at 20°C (68°F) 

1. Apply battery voltage to both terminals. Check that the pump operates.

1. Using an ohmmeter, check that there is continuity between each terminal.
   Fig 10: Inspecting Fuel Pump Relay Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   FUEL PUMP RELAY TERMINALS SPECIFIED CONDITION
   
   

   Between Terminals	Specified Condition
   1 - 2 3 - 4	Continuity
   3 - 5	No continuity

2. Using an ohmmeter, check that there is continuity between terminals 3 and 5 when the battery voltage is applied across terminals 1 and 2.

   Specified condition: Continuity