Knock Sensor: Removal

DISCHARGE FUEL SYSTEM PRESSURE
1. Discharge fuel system pressure (See FUEL SYSTEM ).
DRAIN COOLANT (See COOLANT )
REMOVE FRONT WIPER ARM HEAD CAP (See REMOVAL )
REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY LH (See REMOVAL )
REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY RH (See REMOVAL )
REMOVE HOOD TO COWL TOP SEAL (See REMOVAL )
REMOVE COWL TOP VENTILATOR LOUVER RH (See REMOVAL )
REMOVE COWL TOP VENTILATOR LOUVER LH (See REMOVAL )
REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY (See REMOVAL )
REMOVE OUTER COWL TOP PANEL (See REMOVAL )
REMOVE SUSPENSION TOWER DAMPER ASSEMBLY (w/ Front Strut Bar) (See REMOVAL )
REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY (See REMOVAL )
REMOVE AIR CLEANER CAP SUB-ASSEMBLY WITH HOSE (See ON-VEHICLE INSPECTION )
REMOVE THROTTLE BODY ASSEMBLY (See REMOVAL )
DISCONNECT FUEL TUBE SUB-ASSEMBLY (See REMOVAL )
REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY WITH FUEL TUBE SUB-ASSEMBLY (See REMOVAL )
REMOVE INTAKE MANIFOLD
1. Disconnect the ventilation hose.
  
  Fig 1: Locating Ventilation Hose
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the union to check valve hose.
  
  Fig 2: Locating Valve Hose
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Separate the wire harness clamp from the intake manifold.
4. Remove the 5 bolts, 2 nuts and intake manifold.
  
  Fig 3: Locating Intake Manifold Bolts And Nuts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Remove the intake manifold gasket.
REMOVE NO. 1 INTAKE MANIFOLD INSULATOR
1. Remove the No. 1 intake manifold insulator.
Fig 4: Locating Intake Manifold Gasket
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE KNOCK SENSOR
1. Disconnect the sensor connector.
2. Remove the nut and knock sensor.
Fig 5: Locating Knock Sensor Nut
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002