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Home >> Lexus >> 2007 >> GS 350 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2GR-FSE) - System And Circuit Testing, On-Vehicle Inspection, Removal, Inspection, Installation >> Knock Sensor >> Removal
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Knock Sensor: Removal

CAUTION: Do not allow fuel to spray when removing the pipe between the high pressure side fuel pump and the fuel injectors. The fuel in the pipe is highly pressurized.
  1. DISCHARGE FUEL SYSTEM PRESSURE (See REMOVAL )
  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 COOL AIR INTAKE DUCT SEAL (See REMOVAL )
  5. REMOVE ENGINE ROOM SIDE COVER RH (See REMOVAL )
  6. REMOVE ENGINE ROOM SIDE COVER LH (See REMOVAL )
  7. REMOVE V-BANK COVER (See REMOVAL )
  8. REMOVE FRONT UPPER FENDER PROTECTOR LH (See REMOVAL )
  9. REMOVE FRONT UPPER FENDER PROTECTOR RH (See REMOVAL )
  10. REMOVE FRONT FENDER TO COWL SIDE SEAL LH (See REMOVAL )
  11. REMOVE FRONT FENDER TO COWL SIDE SEAL RH (See REMOVAL )
  12. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY LH (See REMOVAL )
  13. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY RH (See REMOVAL )
  14. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY (See REMOVAL )
  15. DISCONNECT NO. 2 VENTILATION HOSE (See INSPECTION )
  16. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE (See INSPECTION )
  17. REMOVE THROTTLE BODY (See INSPECTION )
  18. REMOVE INTAKE AIR SURGE TANK (See REMOVAL )
  19. REMOVE INTAKE MANIFOLD (See REMOVAL )
  20. DISCONNECT WATER HOSE JOINT (See REMOVAL )
  21. REMOVE FUEL PRESSURE PULSATION DAMPER (See REMOVAL )
  22. REMOVE NO. 1 FUEL PIPE (See REMOVAL )
  23. DISCONNECT NO. 2 FUEL PIPE (See REMOVAL )
  24. REMOVE FUEL PUMP ASSEMBLY (See INSTALLATION )
  25. REMOVE NO. 2 FUEL PIPE (See REMOVAL )
  26. REMOVE NO. 3 FUEL PIPE (See REMOVAL )
  27. REMOVE NO. 2 FUEL DELIVERY PIPE (See REMOVAL )
  28. REMOVE NO. 1 FUEL DELIVERY PIPE (See REMOVAL )
  29. REMOVE FUEL INJECTOR ASSEMBLY (See INSPECTION )
  30. REMOVE FUEL INJECTOR SEAL (See INSPECTION )
  31. REMOVE KNOCK SENSOR 
    1. Disconnect the 2 knock sensor connectors.
    2. Remove the 2 bolts and 2 knock sensors.
    Fig 1: Locating Knock Sensors Bolts And Knock Sensor Connectors
    G05285392Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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