FixVault
Home › Toyota › 2013 › Prius C › Repair and Diagnosis › Engine Mechanical › Fuel System › Fuel System (Service Information) › Fuel Injector › Inspection › Inspection

Fuel Injector: Inspection: Inspection

  1. INSPECT FUEL INJECTOR ASSEMBLY 
    1. Check the resistance.
      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

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

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

    2. Inspect the injector injection volume.
      WARNING:

      Keep the injector away from sparks during the test.

      1. Connect SST (fuel tube connector) to SST (hose) with SST (hose band), and then connect them to the fuel pipe (vehicle side).
        Fig 1: Identifying Fuel Pipe Components
        GTY316324Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *1 SST
        (Hose)
        *2 SST
        (Hose Band)
        *3 SST
        (Fuel Tube Connector)
        *4 Fuel Pipe (Vehicle Side)
        • SST: 09268-31014 
          1. 09268-41500
          2. 09268-41700
          3. 95336-08070
      2. Install a new O-ring to the fuel injector.
      3. Connect SST (adapter and hose) to the injector, and hold the injector and union with SST (clamp).
        Fig 2: Identifying Hose, Fuel Pipe, SST And Retainer
        GTY320166Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *1 SST
        (Hose)
        *2 SST
        (Hose Band)
        *3 SST
        (Adapter)
        *4 O-ring
        *5 SST
        (Clamp)
        *6 Vinyl Tube
        • SST: 09268-31014 
          1. 09268-41110
          2. 09268-41300
          3. 09268-41700
          4. 95336-08070
      4. Install a vinyl tube onto the injector.
        WARNING:

        Install a suitable vinyl tube onto the injector to contain any gasoline spray.

      5. Tie the clamp and adapter together with a tie band as shown in the illustration.
        Fig 3: Tying SST (Clamp And Adapter) Together With SST (Tie Band)
        GTY319450Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *1 SST
        (Tie Band)
        *2 SST
        (Adapter)
        *3 SST
        (Clamp)
        • SST: 09268-31014 
          1. 09268-41110
          2. 09268-41300
          3. 09268-41800
      6. Put the injector into a graduated cylinder.
      7. Operate the fuel pump. Refer to ON-VEHICLE INSPECTION - Step 1 .
      8. Connect SST (wire) to the injector and the auxiliary battery for 15 seconds, and measure the injection volume with the graduated cylinder. Test each injector 2 or 3 times.
        Fig 4: Connecting SST To Injector Assembly And Battery
        GTY315304Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *1 SST
        (Wire)
        *a Connect
        • SST: 09842-30080 
        NOTE:

        Always switch the voltage on and off at the auxiliary battery side, not the injector side.

        Standard Injection Volume

        Tester Connection Condition Specified Condition
        Positive terminal - Ground terminal Per 15 seconds 47 to 58 cc (2.9 to 3.5 cu.in.)

        Difference between each injector

        11 cc (0.6 cu.in.) or less

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

    3. Inspect for leaks.
      1. In the condition above, disconnect the tester probes of SST (wire) from the auxiliary battery and check for fuel drop from the injector.

        Standard fuel drop

        1 drop or less per 24 minutes

        If fuel drop is not as specified, replace the fuel injector assembly.

About FixVault