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Home >> Lexus >> 2007 >> LS 460 V8-4.6L (1UR-FSE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Knock Sensor >> Service and Repair
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Knock Sensor: Service and Repair

REMOVAL

1. REMOVE INTAKE MANIFOLD
a. Remove the intake manifold

2. REMOVE ENGINE COVER SUB-ASSEMBLY
3. REMOVE NO. 4 FUEL PIPE SUB-ASSEMBLY

4. REMOVE SEPARATOR CASE




a. Disconnect the fuel pressure sensor connector.




b. Remove the 4 bolts and separator case.

5. REMOVE KNOCK SENSOR




a. Disconnect the 4 knock sensor connectors.
b. Remove the 4 bolts and 4 knock sensors.

INSTALLATION

1. INSTALL KNOCK SENSOR




a. Install the 4 knock sensors with the 4 bolts so that the sensors are angled as given in the illustration.

Torque: 20 N.m (204 kgf.cm, 15 ft.lbf)

NOTE: The acceptable installation angle of the knock control sensors is between 10� upwards and downwards from the horizontal position.

b. Connect the 4 knock sensor connectors.

2. INSTALL SEPARATOR CASE




a. Install the separator case with the 4 bolts.

Torque: 10 N.m (102 kgf.cm, 7 ft.lbf)




b. Connect the fuel pressure sensor connector.

3. INSTALL NO. 4 FUEL PIPE SUB-ASSEMBLY
4. INSTALL ENGINE COVER SUB-ASSEMBLY

5. INSTALL INTAKE MANIFOLD
a. Install the intake manifold
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