Duty Vacuum Switching Valve (3MZ-FE): Replacement

WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.

DISCONNECT ENGINE WIRE NO. 3 (BATTERY NEGATIVE TERMINAL)
REMOVE V-BANK COVER SUB-ASSY (See THROTTLE BODY ASSY (3MZ-FE) )
REMOVE EMISSION CONTROL VALVE SET
1. Disconnect the 2 VSV connectors.
2. Remove the wire harness clamp.
  
  Fig 1: Disconnecting 2 VSV Connectors
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Disconnect the fuel vapor feed hose No. 1.
4. Disconnect the fuel vapor feed hose No. 2.
5. Disconnect the vacuum hose.
6. Remove the vacuum hose from the clamp.
7. Remove the 2 nuts, then remove the emission control valve set.
  
  Fig 2: Disconnecting Vacuum Hose
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE DUTY VACUUM SWITCHING VALVE
1. Disconnect the 2 vacuum hoses.
2. Remove the screw, then remove the duty vacuum switching valve.
  
  Fig 3: Removing Duty Vacuum Switching Valve
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSTALL DUTY VACUUM SWITCHING VALVE
INSTALL EMISSION CONTROL VALVE SET
Torque: 8.0 N.m (82 kgf.cm, 71 in.lbf)
CHECK CONNECTION OF VACUUM HOSE
INSTALL V-BANK COVER SUB-ASSY (See THROTTLE BODY ASSY (3MZ-FE) )
CONNECT ENGINE WIRE NO. 3 (BATTERY NEGATIVE TERMINAL)
Torque: 5.4 N.m (55 kgf.cm, 48 in.lbf)
SYSTEM INITIALIZATION (See PRECAUTION )