Knock Sensor: Removal: Removal

REMOVE INTAKE MANIFOLD
1. Remove the intake manifold. Refer to REMOVAL .
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

Fig 2: Locating Knock Sensors, Bolts & Connectors
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the 4 knock sensor connectors.
2. Remove the 4 bolts and 4 knock sensors.