FUEL INJECTOR REMOVAL

Info Added 2017-10-06

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during fuel injector assembly removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Disconnect cable from negative battery terminal Memorize steering angle neutral point Lane departure alert system (w/ Steering Control)

Click here

Simple intelligent parking assist system*1
Toyota parking assist-sensor system (w/ Simple Intelligent Parking Assist System)*1
Pre-collision system
Initialize back door lock Power door lock control system

Click here

Drive the vehicle until stop and start control is permitted (approximately 5 to 60 minutes)*2 Stop and start system

Click here

Replacement of fuel injector assembly Inspection After Repair

  • Poor idle, etc.

  • Engine start function, etc.

Click here


CAUTION:


  • A001VZM

    Never perform work on fuel system components near any possible ignition sources.

  • Vaporized fuel could ignite, resulting in a serious accident.

  • A001SQU

    Do not perform work on fuel system components without first disconnecting the cable from the negative (-) battery terminal.

  • Sparks could cause vaporized fuel to ignite, resulting in a serious accident.

PROCEDURE


  1. PRECAUTION

    Note

    After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Click here

  2. DISCHARGE FUEL SYSTEM PRESSURE

    Click here

  3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

    Click here

    Note

    When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

    Click here

  4. REMOVE INTAKE MANIFOLD

    Click here

  5. REMOVE NO. 1 FUEL PIPE SUB-ASSEMBLY

    Click here

  6. DISCONNECT NO. 4 ENGINE WIRE


    1. A001T54

      Disconnect the 4 fuel injector assembly connectors.

    2. Disconnect the fuel pressure sensor connector.

  7. REMOVE FUEL DELIVERY PIPE


    1. A001VZ2C03
      B00495X Bolt
      B0049DE Nut

      Remove the 3 bolts, 2 nuts and fuel delivery pipe with the fuel injector assemblies.

      Note


      • Make sure not to touch or strike the tips of the fuel injector assemblies.

      • Pull and remove the fuel delivery pipe in a straight line without tilting it.

  8. REMOVE FUEL INJECTOR ASSEMBLY


    1. A001TLMN02
      *1 NO. 3

      Secure the fuel delivery pipe in a vise between aluminum plates and pull out the 4 fuel injector assemblies.

      Note


      • Pull and remove each fuel injector assembly in a straight line to avoid damaging the seal surface of the fuel delivery pipe O-ring.

      • After removing the fuel injector assemblies, remove any O-rings, No. 1 fuel injector back-up rings and No. 3 fuel injector back-up rings remaining on the fuel delivery pipe side.

      • Attach a tag or label with the corresponding cylinder number to each fuel injector assembly so that they can be installed to their original locations.

    2. Remove the nozzle holder clamp from each fuel injector assembly.

    3. Using needle nose pliers, remove the No. 3 fuel injector back-up ring from each fuel injector assembly.

      Note

      Do not damage the area that contacts the O-ring.

    4. Remove the O-ring and No. 1 fuel injector back-up ring from each fuel injector assembly.

    5. Remove the C-ring and injector vibration insulator from each fuel injector assembly.

  9. REMOVE FUEL INJECTOR SEAL


    1. A001XRK

      Using the tip of needle nose pliers, pinch and pull the fuel injector seal at several points to stretch it.

      Note


      • Excessively pinching the fuel injector seal may damage the groove of the fuel injector assembly.

      • If a fuel injector assembly is dropped or the tip of the fuel injector assembly is struck, replace it with a new one.

    2. Remove the fuel injector seal from each fuel injector assembly.