Knock Sensor: Inspection

REMOVE THROTTLE BODY COVER
REMOVE INTAKE AIR CONNECTOR
REMOVE INTAKE MANIFOLDS ASSEMBLY
(See REMOVAL )
INSPECT KNOCK SENSOR 1 AND 2
1. Disconnect the knock sensor connectors.
2. Using an ohmmeter, measure the resistance between terminals.
  Resistance:
  
  120 to 280 kΩ at 20°C (68°F)
  
  HINT:
  
  If the resistance is not as specified, replace the sensor.
  
  Fig 1: Measuring Resistance Between Knock Sensor Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE KNOCK SENSOR
1. Disconnect the 2 knock sensor connectors.
2. Remove the 2 nuts and 2 knock sensors.
  
  Fig 2: Removing Nuts And Knock Sensors
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSTALL KNOCK SENSOR
1. Install the 2 knock sensors with the 2 nuts as shown in the illustration.
  Torque: 20 N*m (204 kgf*cm, 15 ft.*lbf)
2. Connect the 2 knock sensor connectors.
INSTALL INTAKE MANIFOLDS ASSEMBLY
(See INSTALLATION )
INSTALL INTAKE AIR CONNECTOR
INSTALL THROTTLE BODY COVER

Fig 3: Locating Knock Sensors Connector With Nuts
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002