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Install the tumble generator valve assembly onto intake manifold.
NOTE: Use new O-rings.

Tightening torque:

8.3 N.m (0.8 kgf-m, 6.1 ft-lb)

Fig 1: Locating Tumble Generator Valve Assembly And Bolts
Courtesy of SUBARU OF AMERICA, INC.
Install the fuel injector pipe.
Connect fuel hoses to fuel injector pipes on both sides, and secure them with the clamps.
Tightening torque:

1.25 N.m (0.1 kgf-m, 0.9 ft-lb)

Fig 2: Identifying Fuel Hose From Pipe
Courtesy of SUBARU OF AMERICA, INC.
Tighten the bolts which secure the fuel injector pipe RH to the lower side of the intake manifold.
Tightening torque:

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

Fig 3: Locating Intake Manifold Bolts
Courtesy of SUBARU OF AMERICA, INC.
Tighten the bolts which secure fuel injector pipe onto intake manifold.
Tightening torque:

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

Fig 4: Locating Intake Manifold Bolts
Courtesy of SUBARU OF AMERICA, INC.
Install the fuel injector.
- RH side
  
  Fig 5: Installing Fuel Injector (RH Side)
  Courtesy of SUBARU OF AMERICA, INC.
- LH side
  
  Fig 6: Installing Fuel Injector (LH Side)
  Courtesy of SUBARU OF AMERICA, INC.
Tighten the bolts which secure fuel injector pipe onto intake manifold.
Tightening torque:

19 N.m (1.9 kgf-m, 14.0 ft-lb)
- LH side
  
  Fig 7: Locating Intake Manifold Bolts (LH Side)
  Courtesy of SUBARU OF AMERICA, INC.
- RH side
  
  Fig 8: Locating Intake Manifold Bolts (RH Side)
  Courtesy of SUBARU OF AMERICA, INC.
Tighten the bolt which holds the fuel injector pipe LH to the front side of the intake manifold, and connect the pressure regulator vacuum hose to the intake manifold.
Tightening torque:

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

Fig 9: Locating Intake Manifold And Bolts
Courtesy of SUBARU OF AMERICA, INC.
Install PCV pipe (A), harness assembly (B) and intake duct (C) to the intake manifold.
Tightening torque:

6.5 N.m (0.7 kgf-m, 4.8 ft-lb)

Fig 10: Locating PCV Pipe, Harness Assembly And Intake Duct
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector to the fuel injector and the tumble generator valve assembly.

Fig 11: Locating Tumble Generator Valve Assembly
Courtesy of SUBARU OF AMERICA, INC.
Install the throttle body to the intake manifold.
NOTE: Use new O-rings.

Tightening torque:

8 N.m (0.8 kgf-m, 5.9 ft-lb)

Fig 12: Locating Throttle Body Bolts
Courtesy of SUBARU OF AMERICA, INC.
Connect the connector to the throttle position sensor.

Fig 13: Locating Connectors From Throttle Position Sensor
Courtesy of SUBARU OF AMERICA, INC.
Connect the evaporation hose to the purge control solenoid valve 2.
NOTE: Connect the evaporation hose as shown in the figure.

When to See a Mechanic

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