Kia Sorento: Knock Sensor (KS)

Knocking is a phenomenon characterized by undesirable vibration and noise and can cause engine damage. Knock Sensor (KS) is installed on the cylinder block and senses engine knocking.

When knocking occurs, the vibration from the cylinder block is applied as pressure to the piezoelectric element. When a knock occurs, the sensor produces voltage signal. The ECM retards the ignition timing when knocking occurs. If the knocking disappears after retarding the ignition timing, the ECM will advance the ignition timing. This sequential control can improve engine power, torque and fuel economy.

Installation

   • Install the component with the specified torques. • ...

Specification

Item Specification Capacitance (pF) 850 ~ 1,150 ...

See also:

Side Impact Sensor (SIS) Components
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Operation and Leakage Check
Check all of the following items: Component Procedure Brake Booster (A) Check brake operation by applying the brakes during a test drive. If the brakes do not ...

Inspection
1. Turn the ignition switch OFF. 2. Disconnect the OCV connector. 3. Measure resistance between the OCV termina ...