Lexus NX: Knock Sensor

Components

COMPONENTS

ILLUSTRATION

*1

KNOCK CONTROL SENSOR

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N*m (kgf*cm, ft.*lbf) : Specified torque

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Removal

REMOVAL

PROCEDURE

1. REMOVE INTAKE MANIFOLD

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2. REMOVE KNOCK CONTROL SENSOR

(a) Disconnect the knock control sensor connector.

(b) Remove the bolt and knock control sensor.

Inspection

INSPECTION

PROCEDURE

1. INSPECT KNOCK CONTROL SENSOR

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

1 - 2

20°C (68°F)

120 to 280 kΩ

If the result is not as specified, replace the knock control sensor.

Installation

INSTALLATION

CAUTION / NOTICE / HINT

HINT:

Perform "Inspection After Repairs" after replacing the knock control sensor.

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PROCEDURE

1. INSTALL KNOCK CONTROL SENSOR

(a) Install the knock control sensor with the bolt so that the knock control sensor is angled as shown in the illustration.

Torque:

20 N·m {204 kgf·cm, 15 ft·lbf}

NOTICE:

  • The acceptable installation angle of the sensor is between 7° upward and 10° downward from the horizontal position.
  • If a knock control sensor has been struck or dropped, replace it.

HINT:

Perform "Inspection After Repairs" after replacing the knock control sensor.

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*a

Engine upper

*b

Right side of the vehicle

(b) Connect the knock control sensor connector.

2. INSTALL INTAKE MANIFOLD

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