Knock Sensor: Removal

DISCHARGE FUEL SYSTEM PRESSURE (See )
DRAIN COOLANT (See COOLANT )
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.
REMOVE FRONT WIPER ARM HEAD CAP (See REMOVAL )
REMOVE FRONT WIPER ARM LH (See REMOVAL )
REMOVE FRONT WIPER ARM RH (See REMOVAL )
REMOVE HOOD TO COWL TOP SEAL (See REMOVAL )
REMOVE COWL TOP VENTILATOR LOUVER LH (See REMOVAL )
REMOVE WIPER LINK (See REMOVAL )
REMOVE COWL TOP PANEL OUTER
1. Remove the wire harness clamp.
2. Remove the 7 bolts and panel.
Fig 1: Removing Bolts And Panel
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE COWL BODY MOUNTING BRACKET LOWER LH
1. Remove the bolt, clip and bracket.
REMOVE ENGINE COVER (see ON-VEHICLE INSPECTION )
REMOVE AIR CLEANER CAP (see REMOVAL )
REMOVE THROTTLE BODY (see REMOVAL )
REMOVE FUEL DELIVERY PIPE (See REMOVAL )

Fig 2: Removing Bolt, Clip And Bracket
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE FUEL TUBE
1. Remove the fuel tube clamp.
2. Pinch the retainer as illustrated, and then pull the fuel tube connector out of the pipe.
NOTE:
- Remove any dirt and foreign objects on the fuel tube connector before performing this work.
  
  Fig 3: Removing Fuel Tube Clamp
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- When disconnecting the connector, do not damage the connector and pipe, and do not allow foreign matter to contact the connector and pipe. Damage or foreign matter may damage the O-ring that seals the pipe and lead to leaks.
- Perform this work by hand. Do not use any tools.
- Do not forcibly bend, twist or turn the nylon tube.
- Protect the disconnected part by covering it with a plastic bag after disconnecting the fuel tube.
- If the fuel tube connector and pipe are stuck, push and pull to release them.
Fig 4: Identifying Fuel Tube Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE HEATER WATER INLET HOSE
1. Remove the hose clamp.
  
  Fig 5: Removing Hose Clamp
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Remove the heater water inlet hose from the heater radiator unit and cylinder head.
  
  Fig 6: Removing Heater Water Inlet Hose From Heater Radiator Unit
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE HEATER WATER OUTLET HOSE
1. Remove the heater water outlet hose from the heater radiator unit and water by-pass pipe.
Fig 7: Removing Heater Water Outlet Hose From Heater Radiator Unit
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE INTAKE MANIFOLD
1. Disconnect the union to check valve hose from the brake booster.
  
  Fig 8: Disconnecting Union To Check Valve Hose From Brake Booster
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the camshaft timing oil control valve connector.
3. Remove the wire harness clamp.
4. Remove the union to check valve hose from the vacuum hose clamp.
5. Remove the 5 bolts, 2 nuts and intake manifold.
  
  Fig 9: Removing Wire Harness Clamp
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 10: Removing Bolts, Nuts And Intake Manifold
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Remove the gasket from the intake manifold.
  
  Fig 11: Removing Gasket From Intake Manifold
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE INTAKE MANIFOLD INSULATOR
1. Remove the intake manifold insulator from the cylinder block.
Fig 12: Removing Intake Manifold Insulator From Cylinder Block
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE KNOCK SENSOR
1. Disconnect the sensor connector.
2. Remove the nut and sensor.
Fig 13: Removing Nut And Sensor
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002