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Home >> Lexus >> 2005 >> GS 300 >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> SFI (2JZ-GE) >> Knock Sensor >> Inspection

Knock Sensor: Inspection

  1. REMOVE ENGINE COVER 

    Remove the 4 nuts and engine cover.

  2. REMOVE PS PUMP REAR STAY 
  3. REMOVE KNOCK SENSOR 1 
    1. Disconnect the knock sensor connector.
    2. Using SST, remove the knock sensor.

      SST 09816-30010

      Fig 1: Disconnecting Knock Sensor
      G02944091Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. REMOVE OIL DIPSTICK AND GUIDE FOR A/T (See appropriate step(s) under  REMOVAL  ) 
  5. REMOVE STARTER (See  REMOVAL  ) 
  6. REMOVE KNOCK SENSOR 2 (See step   2 ) 
  7. INSPECT KNOCK SENSORS 

    Using an ohmmeter, check that there is no continuity between the terminal and body.

    If there is continuity, replace the sensor.

    Fig 2: Checking No Continuity Between Knock Sensor Terminal & Body
    G02944092Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REINSTALL KNOCK SENSORS 
    1. Using SST, install the knock sensor.

      SST 09816-30010

      Torque: 44 N.m (450 kgf.cm, 33 ft.lbf) 

    2. Connect the knock sensor connector.
  9. REINSTALL STARTER (See  INSTALLATION  ) 
  10. REINSTALL OIL DIPSTICK AND GUIDE FOR A/T 

    HINT:

    Use a new O-ring.

  11. REINSTALL PS PUMP REAR STAY 

    Torque: 39.2 N.m (400 kgf.cm, 29 ft.lbf) 

  12. REINSTALL ENGINE COVER 

    Reinstall the engine cover with the 4 nuts.

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