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HOMESERVICE MANUALSSUBARU2022IMPREZA BASE, 4D SEDAN, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 5 (FUEL INJECTION SYSTEM (HEV))INTAKE MANIFOLD ASSEMBLYREMOVAL
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT Trans

Intake Manifold Assembly: Removal

2022 Subaru Impreza Base, 4D Sedan, Automatic CVT TransSECTION Removal
WARNING: This page is about a different car, the 2022 Subaru Crosstrek. However, it is still accessible from the selected car via links, so may be relevant.
  1. If the fuel delivery tube is disconnected after removing the intake manifold assembly, perform the following work.
    1. Release the fuel pressure. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO(HEV))>FUEL>PROCEDURE>RELEASING OF FUEL PRESSURE .
    2. Open the fuel filler lid and remove the fuel filler cap.
    NOTE:

    This operation is required to release the inner pressure of the fuel tank. 

  2. Disconnect the ground terminal from battery. Ref. to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
  3. Remove the clip from the air intake boot, and loosen the clamp.
    G13230667Courtesy of SUBARU OF AMERICA, INC.
  4. Remove the air intake boot, and place it aside so that it does not interfere with the work.
    CAUTION:

    Be careful not to pull out the PCV hose. 

    G13230668Courtesy of SUBARU OF AMERICA, INC.
  5. Remove the collector cover. Ref. to INTAKE (INDUCTION) (H4DO (EXCEPT FOR HEV))>COLLECTOR COVER>REMOVAL .
  6. Remove the PCV hose No. 1. Ref. to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (H4DO(HEV))>PCV HOSE>REMOVAL>PCV HOSE NO. 1 .
  7. When the engine coolant (engine side) is not drained before removing the intake manifold assembly
    1. Disconnect the connector (A).
    2. Remove the bolts securing the throttle body, and move the throttle body aside so that it does not interfere with the work.
      G13230800Courtesy of SUBARU OF AMERICA, INC.
    3. Remove the EGR control valve. Ref. to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (H4DO(HEV))>EGR CONTROL VALVE>REMOVAL .
      NOTE:

      The work can be performed without disconnecting the preheater hose. 

    4. Remove the preheater hose.
    G13230801Courtesy of SUBARU OF AMERICA, INC.
  8. When the engine coolant (engine side) is drained before removing the intake manifold assembly
    1. Disconnect the connector (A), and disconnect the preheater hose (B).
      G13230802Courtesy of SUBARU OF AMERICA, INC.
    2. Remove the EGR control valve. Ref. to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (H4DO(HEV))>EGR CONTROL VALVE>REMOVAL .
  9. Disconnect the connector (A).
  10. Disconnect the connector (B) and remove the clip (C).
  11. Disconnect the evaporation hose (D).
  12. Remove the bolt securing the fuel pipe.
    G13230803Courtesy of SUBARU OF AMERICA, INC.
  13. Disconnect the connector (A).
  14. Remove the fuel delivery tube clamp (B).
  15. Remove the clip.
    G13230804Courtesy of SUBARU OF AMERICA, INC.
  16. Disconnect connector (A) from ECM. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO(HEV))>ENGINE CONTROL MODULE (ECM)>REMOVAL .
  17. Disconnect the connector (B) from the main fuse box, and remove the engine wiring harness from the clip (C).
    G13230054Courtesy of SUBARU OF AMERICA, INC.
  18. Disconnect the positive terminal of battery. Ref. to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
  19. Release the claw securing the engine wiring harness to the bracket, and place it aside so that it does not interfere with work.
    G13230055Courtesy of SUBARU OF AMERICA, INC.
  20. Remove the clip (A) securing the HV air conditioning wire.
  21. Remove the fuel pipe protector No. 1.
    G13230807Courtesy of SUBARU OF AMERICA, INC.
  22. Disconnect the connector (A) and remove the clips.
    G13230808Courtesy of SUBARU OF AMERICA, INC.
  23. Remove the fuel delivery tube.
    G13230809Courtesy of SUBARU OF AMERICA, INC.
  24. Remove the intake manifold assembly.
    G13230810Courtesy of SUBARU OF AMERICA, INC.
  25. Remove the cylinder head plate.
    NOTE:

    Perform this procedure when required. 

    G13230811Courtesy of SUBARU OF AMERICA, INC.
  26. Disconnect the fuel delivery pipe. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO(HEV))>FUEL DELIVERY AND EVAPORATION LINES>REMOVAL>QUICK CONNECTOR DISCONNECTION (TYPE C) .
    G13230812Courtesy of SUBARU OF AMERICA, INC.
  27. Disconnect the fuel delivery pipe (A). Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO(HEV))>FUEL DELIVERY AND EVAPORATION LINES>REMOVAL>QUICK CONNECTOR DISCONNECTION (TYPE B) .
  28. Disconnect the fuel delivery tube (B). Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO(HEV))>FUEL DELIVERY AND EVAPORATION LINES>REMOVAL>QUICK CONNECTOR DISCONNECTION (TYPE A) .
G13230813Courtesy of SUBARU OF AMERICA, INC.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.