Knock Sensor: Removal: Removal

DISCHARGE FUEL SYSTEM PRESSURE
1. Discharge fuel system pressure. Refer to PRECAUTION .
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
WARNING:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

NOTE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected. Refer to INITIALIZATION .
REMOVE INTAKE AIR SURGE TANK ASSEMBLY
1. Remove the intake air surge tank assembly. Refer to REMOVAL .
REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY . Refer to REMOVAL - Step 11
REMOVE NO. 2 ENGINE COVER SUB-ASSEMBLY LH . Refer to REMOVAL - Step 12
REMOVE NO. 4 FUEL PIPE SUB-ASSEMBLY . Refer to REMOVAL - Step 13
REMOVE CASE SEPARATOR
1. Disconnect the fuel pressure sensor connector.
  
  Fig 1: Identifying Fuel Pressure Sensor Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Remove the 4 bolts and case separator.
  
  Fig 2: Locating Separator Case And Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE KNOCK CONTROL SENSOR

Fig 3: Locating Knock Sensor Connectors And Bolts
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Disconnect the 4 knock control sensor connectors.
2. Remove the 4 bolts and 4 knock control sensors.