Knock Sensor: Removal

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
DRAIN ENGINE COOLANT (See REPLACEMENT )
REMOVE CYLINDER HEAD COVER NO. 2 (See REMOVAL )
REMOVE AIR CLEANER CAP SUB-ASSEMBLY WITH AIR CLEANER HOSE NO. 1 (See REMOVAL )
DISCONNECT WATER BY-PASS HOSE (See REMOVAL )
DISCONNECT WATER BY-PASS HOSE NO. 2 (See REMOVAL )
REMOVE THROTTLE WITH MOTOR BODY ASSEMBLY (See REMOVAL )
REMOVE INTAKE MANIFOLD
1. Separate the engine wire harness from the intake manifold.
  
  Fig 1: Identifying Engine Wire Harness Onto Intake Manifold
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Separate water by-pass hose No. 2.
  
  Fig 2: Identifying Water By-Pass Hose No. 2
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Disconnect the ventilation hose.
  
  Fig 3: Identifying Ventilation Hose
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Disconnect the union to connector tube hose.
  
  Fig 4: Identifying Union To Connector Tube Hose
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Remove the 3 bolts and 2 nuts and remove the intake manifold.
6. Remove the gasket from the intake manifold.
REMOVE KNOCK SENSOR
1. Disconnect the knock sensor connector.
2. Remove the nut and remove the knock sensor.
  
  Fig 6: Identifying Nut And Knock Sensor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002