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Knock Sensor: Removal

WARNING: This page is about a different car, the 2007 Lexus GS 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. DISCHARGE FUEL SYSTEM PRESSURE (See  DISASSEMBLY  ) 
  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
  3. DRAIN ENGINE COOLANT (See  COOLANT  ) 
  4. REMOVE INTAKE MANIFOLD ASSEMBLY 
    1. Remove the intake manifold (see REMOVAL ).
  5. REMOVE KNOCK SENSOR 
    1. Disconnect the 2 knock sensor connectors.
    2. Remove the 2 nuts and 2 knock sensors.
      Fig 1: Identifying Knock Sensors
      G05285804Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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