Knock Sensor: Removal

REMOVE INTAKE MANIFOLD
1. Remove the intake manifold (See REMOVAL ).
REMOVE NO. 2 CYLINDER HEAD COVER (See REMOVAL )
REMOVE NO. 1 ENGINE COVER (See REMOVAL )
REMOVE KNOCK SENSOR
1. Disconnect the 4 knock sensor connectors.
2. Remove the 4 bolts and 4 knock sensors.
  
  Fig 1: Locating Knock Sensors With Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002