Intake Manifold: Installation

Install the intake manifold onto cylinder heads.
NOTE: Use a new gasket.

Tightening torque:

25 N.m (2.5 kgf-m, 18.4 ft-lb)

Fig 1: Locating Bolts Which Secure Intake Manifold To Cylinder Head
Courtesy of SUBARU OF AMERICA, INC.
Connect the fuel delivery hose and evaporation hose to the fuel pipe. Refer to INSTALLATION , Fuel Delivery and Evaporation Lines.
NOTE: If fuel hoses or clamps are damaged, replace them with new parts.
Install the EGR pipe to intake manifold.
Tightening torque:

34 N.m (3.5 kgf-m, 25.1 ft-lb)

Fig 2: Identifying EGR Pipe
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Connect the connector to the oil temperature sensor.

Fig 3: Locating Oil Temperature Sensor Connector
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Connect the connector to the variable valve lift diagnosis oil pressure switch.
- LH side
  
  Fig 4: Locating Variable Valve Lift Diagnosis Oil Pressure Switch Connector - LH Side
  Courtesy of SUBARU OF AMERICA, INC.
- RH side
  
  Fig 5: Locating Variable Valve Lift Diagnosis Oil Pressure Switch Connector - RH Side
  Courtesy of SUBARU OF AMERICA, INC.
Connect the connector to the oil switching solenoid valve.
Connect the front oxygen (A/F) sensor connector (A) and rear oxygen sensor connector (B).

Fig 6: Identifying Front Oxygen (A/F) Sensor Connector And Rear Oxygen Sensor Connector
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Connect the connectors to camshaft position sensor.

Fig 7: Identifying Camshaft Position Sensor Connectors
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Connect the connector to the power steering pump switch (A).
Connect the connector to the oil pressure switch (B).

Fig 8: Identifying Power Steering Pump Switch Connector And Oil Pressure Switch Connector
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Connect the connector to crankshaft position sensor.

Fig 9: Identifying Crankshaft Position Sensor Connector
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Connect the knock sensor connector.

Fig 10: Identifying Knock Sensor Connector
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Connect the connector to engine coolant temperature sensor.

Fig 11: Identifying Engine Coolant Temperature Sensor Connectors
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Connect the PCV hose (A) to intake manifold.

Fig 12: Identifying PCV Hose
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Connect the brake booster hose (A).

Fig 13: Identifying Brake Booster Hose
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Connect the engine harness connector to the bulkhead harness connector and fasten to the rear engine hanger with bolt.
Tightening torque:

6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

Fig 14: Locating Bulk Head Harness Connector Bolt
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Connect the engine coolant hoses (A) to throttle body.

Fig 15: Identifying Engine Coolant Hoses
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Connect the spark plug cords to spark plugs.
Install the generator. Refer to INSTALLATION , Generator.
Install the air intake duct and air intake chamber. Refer to INSTALLATION , Air Intake Duct. Refer to INSTALLATION , Air Intake Chamber.
Connect the ground cable to battery.

Fig 16: Disconnecting Ground Cable From Battery
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Lift up the vehicle.
Install the under cover.
Lower the vehicle.
Fill engine coolant. Refer to DRAINING OF ENGINE COOLANT , REPLACEMENT, Engine Coolant.