lemon-mirror:
Home >> Subaru >> 2009 >> Impreza WRX STi >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (STI) >> Intake Manifold >> Disassembly

Intake Manifold: Disassembly

  1. Remove clamp (A) holding the fuel pipe protector RH to the engine harness, and remove the fuel pipe protector RH.
    Fig 1: Locating Fuel Pipe Protector RH And Clamp
    G06344590Courtesy of SUBARU OF AMERICA, INC.
  2. Remove the fuel pipe protector LH.
    Fig 2: Locating Fuel Pipe Protector LH
    G06344591Courtesy of SUBARU OF AMERICA, INC.
  3. Remove the connector from the intake duct.
    Fig 3: Removing Intake Duct And Connector
    G06344592Courtesy of SUBARU OF AMERICA, INC.
  4. Remove purge control solenoid valve 1 (A) and purge control solenoid valve 2 (B).
    Fig 4: Locating Purge Control Solenoid Valve 1 And Purge Control Solenoid Valve 2
    G06344593Courtesy of SUBARU OF AMERICA, INC.
  5. Remove the solenoid valve bracket together with the wastegate control solenoid valve.
    Fig 5: Locating Solenoid Valve Bracket With Wastegate Control Solenoid Valve
    G06344594Courtesy of SUBARU OF AMERICA, INC.
  6. Remove the engine ground terminals from the intake manifold.
    Fig 6: Locating Engine Ground Terminals
    G06344595Courtesy of SUBARU OF AMERICA, INC.
  7. Disconnect the connector from the throttle position sensor (A), and the manifold pressure sensor (B).
    Fig 7: Identifying Throttle Position Sensor Connector And Manifold Pressure Sensor Connector
    G06344596Courtesy of SUBARU OF AMERICA, INC.
  8. Remove clip (A) holding the engine harness and vacuum hose, clip (B) holding the engine harness to the engine harness stay, and the bolt holding the engine harness to the intake manifold.
    Fig 8: Locating Engine Harness And Vacuum Hose Clips And Bolt
    G06344597Courtesy of SUBARU OF AMERICA, INC.
  9. Remove the throttle body from the intake manifold.
    Fig 9: Locating Throttle Body And Bolts
    G06344598Courtesy of SUBARU OF AMERICA, INC.
  10. Remove the harness band (A) which holds the engine harness to the fuel injector pipe.
    • RH side
      Fig 10: Identifying Harness Band (RH Side)
      G06344599Courtesy of SUBARU OF AMERICA, INC.
    • LH side
      Fig 11: Identifying Harness Band (LH Side)
      G06344600Courtesy of SUBARU OF AMERICA, INC.
  11. Disconnect the connector from fuel injector.
    Fig 12: Locating Fuel Injector Connector
    G06344601Courtesy of SUBARU OF AMERICA, INC.
    Fig 13: Identifying Tumble Generator Valve Assembly Connector
    G06344602Courtesy of SUBARU OF AMERICA, INC.
  12. Disconnect the connector from the tumble generator valve assembly.
  13. Remove the bolts which hold fuel injector pipe.
    • RH side
      Fig 14: Locating Fuel Injector Pipe And Bolts (RH)
      G06344603Courtesy of SUBARU OF AMERICA, INC.
    • LH side
      Fig 15: Locating Fuel Injector Pipe And Bolts (LH) (1 Of 2)
      G06344604Courtesy of SUBARU OF AMERICA, INC.
      Fig 16: Locating Fuel Injector Pipe And Bolts (LH) (2 Of 2)
      G06344605Courtesy of SUBARU OF AMERICA, INC.
  14. Remove the fuel injector.
    Fig 17: Removing Fuel Injector
    G06344606Courtesy of SUBARU OF AMERICA, INC.
  15. Remove the harness brackets holding the engine harness to the intake manifold, and remove the engine harness.
    Fig 18: Locating Engine Harness To Intake Manifold And Bolts
    G06344607Courtesy of SUBARU OF AMERICA, INC.
  16. Loosen the clamp holding the RH side fuel hose to the fuel injector pipe RH, and remove the fuel injector pipe RH.
    Fig 19: Identifying Fuel Injector Pipe RH And Clamp
    G06344608Courtesy of SUBARU OF AMERICA, INC.
  17. Loosen the clamp holding the LH side fuel hose to the fuel injector pipe LH, and remove the fuel injector pipe LH.
    Fig 20: Identifying Fuel Injector Pipe LH And Clamp
    G06344609Courtesy of SUBARU OF AMERICA, INC.
  18. Remove the bolts holding the fuel pipe assembly to the intake manifold, and remove the fuel pipe assembly.
    Fig 21: Locating Fuel Pipe Assembly To Intake Manifold And Bolts
    G05333518Courtesy of SUBARU OF AMERICA, INC.
  19. Remove the intake duct from intake manifold.
    Fig 22: Locating Intake Duct
    G06344611Courtesy of SUBARU OF AMERICA, INC.
  20. Remove the tumble generator assembly from the intake manifold.
    Fig 23: Locating Tumble Generator Assembly
    G06344612Courtesy of SUBARU OF AMERICA, INC.