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Home >> Subaru >> 2013 >> Impreza WRX STi Limited >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (WRX-STI) >> Throttle Body >> Removal

Throttle Body: Removal

  1. Disconnect the ground cable from battery.
    Fig 1: Disconnecting Ground Cable From Battery
    G08538624Courtesy of SUBARU OF AMERICA, INC.
  2. Lift up the vehicle.
  3. Remove the under cover. < Refer to REMOVAL , Front Under Cover. >
  4. Drain approximately 3.0 L (3.2 US qt, 2.6 Imp qt) of coolant. < Refer to DRAINING OF ENGINE COOLANT , REPLACEMENT, Engine Coolant. >
  5. Remove the intercooler. < Refer to REMOVAL , Intercooler. >
  6. Disconnect the connector (A) from the throttle position sensor, and the connector (B) from the manifold pressure sensor.
    Fig 2: Identifying Manifold Pressure Sensor And Throttle Position Sensor Connector
    G08538625Courtesy of SUBARU OF AMERICA, INC.
  7. Disconnect the engine coolant hose from throttle body.
    Fig 3: Locating Engine Coolant Hose Clamp
    G08538626Courtesy of SUBARU OF AMERICA, INC.
  8. Remove the throttle body from the intake manifold.
    Fig 4: Locating Intake Manifold Mounting Bolts
    G08538627Courtesy of SUBARU OF AMERICA, INC.