Fuel Injector Inspection

Engine Hybrid System. Corolla. Zre142 Aze141
2Az-Fe Fuel. Corolla. Zre142 Aze141

  1. INSPECT FUEL INJECTOR ASSEMBLY

Fuel Injector -- Inspection



1. INSPECT FUEL INJECTOR ASSEMBLY


    Corolla. Zre142 Aze141

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

    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 injector.


  1. Inspect the injector injection.

    CAUTION:
    Keep the injector away from sparks during the test.



      Corolla. Zre142 Aze141.2Az-Fe Fuel.Fuel System.Fuel Injector Inspection

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

      Text in Illustration
      *1
      		SST
      (Hose)
      *2
      		SST
      (Hose Band)
      *3
      		SST
      (Fuel Tube Connector)
      *4
      		Fuel Pipe (Vehicle Side)
      SST
      09268-31014(09268-41500,09268-41700,95336-08070)

    2. Install the O-ring to the fuel injector.



      3. Corolla. Zre142 Aze141.2Az-Fe Fuel.Fuel System.Fuel Injector Inspection

    3. Connect SST (adapter and hose) to the injector, and hold the injector and union with SST (clamp).

      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(09268-41110,09268-41300,09268-41700,95336-08070)


      4. Corolla. Zre142 Aze141.2Az-Fe Fuel.Fuel System.Fuel Injector Inspection

    4. Tie the clamp and adapter together with a tie band as shown in the illustration.

      Text in Illustration
      *1
      		SST
      (Tie Band)
      *2
      		SST
      (Adapter)
      *3
      		SST
      (Clamp)
      SST
      09268-31014(09268-41110,09268-41300,09268-41800)

    5. Put the injector into the graduated cylinder.

      CAUTION:
      Install a suitable vinyl tube onto the injector that will contain gasoline spray.

    6. Operate the fuel pump.



      7. Corolla. Zre142 Aze141.2Az-Fe Fuel.Fuel System.Fuel Injector Inspection

    7. 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.

      Text in Illustration
      *1
      		SST
      (Wire)
      *a
      		Connect
      SST
      09842-30080
      NOTICE:
      Always switch the voltage on and off at the battery side, not the injector side.
      Injection Volume:
      Tester Connection
      		Condition
      		Specified Condition
      Positive terminal - Ground terminal
      		per 15 seconds
      		76 to 92 cc (4.6 to 5.6 cu.in.)
      Standard difference between each injector:
      16 cc (1.0 cu.in.) or less
      If the result is not as specified, replace the fuel injector assembly.


  1. Inspect the fuel leakage.



      Corolla. Zre142 Aze141

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

    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.