Kia Rio: Description - Knock Sensor (KS) - Engine Control System - Engine Control / Fuel System - Kia Rio UB 2012-2024 Service ManualKia Rio: 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.

Specification


Knock Sensor (KS)
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Specification
Item Specification Capacitance (pF) 950 ~ 1,350 Resistance (MΩ) 4.87 ...

See also:

SRS Control Module (SRSCM) Removal
1. Remove the ignition key from the vehicle. 2. Disconnect the battery negative cable and wait for at least three minutes before beginning ...

Starter: Removal and Installation
1. Disconnect the battery negative terminal. 2. Remove the air duct and air cleaner assembly. (Refer to EM group) 3. ...

Removal
1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Disconnect the connector (A), and then remove the sensor ...

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