Knock Sensor: Service and Repair
REMOVAL1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
NOTE:
- Some systems need to be initialized after the cable is reconnected.
- After the ignition switch is turned OFF, the navigation system requires approximately 90 seconds to record various types of memory and settings. As a result, after turning the ignition switch OFF, wait 90 seconds or more before disconnecting the cable from the negative (-) battery terminal.
2. REMOVE INTAKE MANIFOLD ASSEMBLY
a. Remove the intake manifold.
3. REMOVE WATER BY-PASS PIPE SUB-ASSEMBLY
4. REMOVE NO. 4 AIR INJECTION SYSTEM HOSE
5. REMOVE KNOCK SENSOR
a. Disconnect the 2 sensor connectors.
b. Remove the 2 nuts and 2 sensors.
INSTALLATION
1. INSTALL KNOCK SENSOR
a. Install the 2 sensors with the 2 nuts as shown in the illustration.
Torque: 20 N.m (204 kgf.cm, 15 ft.lbf)
b. Connect the 2 sensor connectors.
2. INSTALL NO. 4 AIR INJECTION SYSTEM HOSE
3. INSTALL WATER BY-PASS PIPE SUB-ASSEMBLY
4. INSTALL INTAKE MANIFOLD ASSEMBLY
a. Install the intake manifold.
5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
NOTE: Some systems need to be initialized after the cable is reconnected.