Knock Sensor: Removal

REMOVE INTAKE MANIFOLD
1. Remove the intake manifold. (See REMOVAL ).
REMOVE NO. 2 CYLINDER HEAD COVER . (See AIR SWITCHING VALVE ).
REMOVE NO. 1 ENGINE COVER . (SeeAIR SWITCHING VALVE ).
REMOVE SEPARATOR CASE
1. Remove the 4 bolts and separator case.
  
  Fig 1: Locating Separator Case & Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE KNOCK SENSOR
1. Disconnect the 4 knock sensor connectors.
2. Remove the 4 bolts and 4 knock sensors.
  
  Fig 2: Locating Knock Sensor Connectors & Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002