Throttle Body (1ZZ-FE): Removal

DRAIN ENGINE COOLANT
DISCONNECT ACCELERATOR CABLE
REMOVE NO. 2 CYLINDER HEAD COVER
REMOVE AIR CLEANER HOSE AND CAP WITH MAF METER
1. Disconnect the VSV for EVAP.
2. Disconnect the 2 air hoses from air cleaner cap.
3. Loosen the air cleaner hose clamp bolt.
4. Disconnect the mass air flow meter connector.
5. Disconnect the 3 air cleaner cap clips.
6. Disconnect the air cleaner hose from the throttle body, and remove the air cleaner cap together with the air cleaner hose.
REMOVE THROTTLE BODY
1. Disconnect the throttle position sensor connector.
  
  Fig 1: Disconnecting Throttle Position Sensor Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the IAC valve connector.
3. Disconnect the PCV hose from throttle body.
4. Remove the 2 bolts and disconnect the No. 2 water by-pass pipe.
  
  Fig 2: Disconnecting No. 2 Water By-Pass Pipe
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Disconnect the 2 water by-pass hoses.
  
  Fig 3: Disconnecting Water By-Pass Hoses
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Remove the 2 bolts, 2 nuts and throttle body from the intake manifold.
  
  Fig 4: Removing Throttle Body
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
7. Remove the throttle body gasket.