Knock Sensor: Removal

DRAIN ENGINE COOLANT (See ON-VEHICLE INSPECTION )
REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE
REMOVE THROTTLE BODY ASSEMBLY (See REMOVAL )
REMOVE INTAKE MANIFOLD
1. Remove the 5 bolts, 2 nuts, intake manifold and gasket.
  
  Fig 1: Removing Bolts, Nuts And Intake Manifold
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE KNOCK SENSOR
1. Disconnect the sensor connector.
2. Remove the nut and sensor.
  
  Fig 2: Removing Nut And Sensor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002