Knock Sensor, Intake Manifold: Removal

DISCHARGE FUEL SYSTEM PRESSURE (See REMOVAL )
DRAIN ENGINE COOLANT (See REPLACEMENT )
REMOVE V-BANK COVER SUB-ASSEMBLY (See REMOVAL )
REMOVE AIR CLEANER HOSE ASSEMBLY
1. Disconnect the vacuum hoses (for the power steering idle-up and fuel pressure regulator) and ventilation hose.
2. Remove the air cleaner hose assembly.
DISCONNECT FUEL HOSE (See REMOVAL )
DISCONNECT FUEL HOSE NO.2 (See REMOVAL )
DISCONNECT CONNECTORS FROM INTAKE MANIFOLD
1. Disconnect the throttle control connector.
2. Disconnect the purge VSV connector.
3. Disconnect the 8 injector connectors.
4. Disconnect the ECT sensor connector.
5. Disconnect the 2 VSV connectors for the air injection system.
6. Disconnect the 8 ignition coil connectors.
7. Disconnect the 2 air fuel ratio sensor connectors.
DISCONNECT HOSES FROM INTAKE MANIFOLD
1. Disconnect the vacuum hose [A] from the fuel pressure regulator.
2. Disconnect the PCV hoses [B] from the PCV valve on the LH cylinder head.
3. Disconnect the EVAP hose (from the charcoal canister) [C] from the VSV for the EVAP.
4. Disconnect the 2 vacuum hoses [D] from the VSV for the air injection system.
  
  Fig 1: Identifying Vacuum Hose, PCV Hoses , EVAP Hose And Vacuum Hoses
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE INTAKE MANIFOLD
1. Disconnect the 2 water by-pass hoses from the throttle body.
  
  Fig 2: Locating Water By-Pass Hoses
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the 2 wire clamps from the wire clamp bracket on the RH delivery pipe.
  
  Fig 3: Locating Wire Clamps
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Remove the bolt and nut holding the engine wire protector from the intake manifold and cylinder head.
4. Remove the 2 bolts and ground cables from the RH and LH cylinder heads.
5. Remove the bolt and V-bank cover bracket from the intake manifold.
  
  Fig 4: Locating Cylinder Heads Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Disconnect the engine wire from the engine hanger and wire bracket.
  
  Fig 5: Locating Engine Wire On Engine Hanger And Wire Bracket
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
7. Remove the bolt and wire bracket from the intake manifold.
8. Remove the 6 bolts, 4 nuts, intake manifold assembly and 2 gaskets.
REMOVE AIR PUMP ASSEMBLY WITH BRACKET (See REMOVAL )

Fig 6: Locating Intake Manifold Assembly Bolts And Nuts
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE KNOCK SENSOR
1. Disconnect the 2 knock sensor connectors.
2. Remove the 2 nuts and 2 knock sensors.
  
  Fig 7: Removing Knock Sensors Nuts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002