Fuel Injector: Inspection

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

   Standard 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

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

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

   Fig 1: Measuring Resistance Between Terminals Using Ohmmeter

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Prepare a new fuel tube.

   HINT:

   Part No. 23801-0P010

   Fig 2: Assembling New Tube Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Using a cutter knife, cut the fuel tube protector. Tear the protector by hand, then remove the fuel tube connector.
   NOTE: If the protector is cut too deeply with the cutter, the O-ring of the fuel tube connector will be damaged.
   Fig 3: Identifying Fuel Tube Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Install the fuel tube connector into SST (hose), then connect the tube connector to the fuel pipe.

   SST 09268-41047 (95336-08070) 

   CAUTION: Connect the fuel tube connector (quick type) after observing the precautions.
4. Remove the pressure regulator (see FUEL PRESSURE REGULATOR ).
5. Install the O-ring onto the fuel inlet of the pressure regulator.
   Fig 4: Installing Fuel Tube Connector Into SST (Hose)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Connect 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) 

7. Connect the fuel return hose to the fuel outlet of the pressure regulator.
   Fig 5: Connecting SST (Hose) To Fuel Inlet Of Pressure Regulator

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
8. Install a new O-ring onto the injector.
9. Connect SST (adaptor and hose) to the injector and hold the injector and union with SST (clamp).

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

10. Set the injector in a graduated cylinder.
    CAUTION: Install a suitable vinyl tube onto the injector to prevent gasoline splashes.
    Fig 6: Installing New O-Ring Onto Injector

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
11. Connect the intelligent tester to the DLC3.
12. Turn the ignition switch to ON.
13. Turn the intelligent tester ON.
14. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / FUEL PUMP / SPD / ON.
15. Install SST onto the fuel injector.

    SST 09842-30080 

    Fig 7: Connecting Intelligent Tester To DLC3

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
16. Connect SST to the battery, then measure the injection volume for 15 seconds. Perform the inspection 2 or 3 times, then calculate the average.

    Standard: 

    VOLUME SPECIFICATION
    
    

    Injection Volume	Difference Between Each Fuel Injector
    76 to 91 cm3 (4.6 to 5.5 cu in.) per 15 seconds	15 cm3 (0.9 cu in.) or less

    Fig 8: Connecting SST To Battery

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NOTE: Always do the switching at the battery side.

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

1. When checking the injection volume, remove SST from the battery. Inspect the fuel leakage from the fuel injector.

Standard: 1 drop or less every 12 minutes. 

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