Knock Sensor: Removal

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
DRAIN ENGINE COOLANT (See COOLANT )
REMOVE NO. 2 CYLINDER HEAD COVER (See REMOVAL )
REMOVE AIR CLEANER CAP SUB-ASSEMBLY WITH HOSE (See REMOVAL )
REMOVE INTAKE MANIFOLD
1. Disconnect the throttle body connector and the 2 water by-pass hoses.
  
  Fig 1: Locating Throttle Body Connector And Water By-Pass Hoses
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Separate the wire harness clamp and remove the bolt and wire harness bracket.
  
  Fig 2: Locating Wire Harness Clamp
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Separate the 2 hoses.
  
  Fig 3: Locating Hoses
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Separate the ventilation hose.
  
  Fig 4: Locating Ventilation Hose
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Separate the 2 wire harness clamps.
  
  Fig 5: Locating Wire Harness Clamps
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Separate the 2 wire harness clamps.
  
  Fig 6: Identifying Wire Harness Clamps
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
7. Remove the 4 bolts and 2 nuts and remove the intake manifold stay and intake manifold with throttle body.
  
  Fig 7: Locating Bolts And Nuts And Intake Manifold Stay
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
8. Remove the gasket from the intake manifold.
  
  Fig 8: Identifying Gasket
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE KNOCK SENSOR
1. Disconnect the knock sensor connector.
2. Remove the bolt and remove the knock sensor.
  
  Fig 9: Locating Bolt And Knock Sensor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002