Kia Optima: Knock Sensor (KS). Description and Operation - Engine Control System - Engine Control/Fuel System - Kia Optima TF 2011-2026 Service ManualKia Optima: Knock Sensor (KS). Description and Operation

Description

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. • Note that internal d ...

Knock Sensor (KS). Specifications
Specification Item Specification Capacitance (pF) 850 ~ 1,150 ...

See also:

Component Location (2)
1. FOB holder 2. Door outside handle 3. Trunk lid open switch 4. FOB key ...

Replacement
1. Loosen the wheel nuts slightly. Raise the vehicle, and make sure it is securely supported. 2. Remove wheel nuts, front wheel and tire from front hub. ...

Climate Control Air Filter. Repair procedures
Replacement 1. Disconnect the damper (B) from the glove box (A).Remove the glove box lift (C). 2. Remove the filter cover with pushing the knob. ...

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