Kia Rio: Description - Knock Sensor (KS) - Engine Control System - Engine Control / Fuel System - Kia Rio UB 2012-2019 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:

Antenna Removal
1. Remove the rear roof trim. (Refer to the Body group - Roof trim). 2. Disconnect the antenna cable and the connector (A). ...

Accelerator Pedal Removal
1. Turn the ignition switch OFF and disconnect the negative (-) battery cable. 2. Disconnect the accelerator position sensor connector (A). ...

Specification
Pressure [kPa (kgf/cm², in H2O) Output Voltage (V) -6.67 (-0.068, -26.8) 0.5 0 2.5 +6.67 (0.068, 26.8) 4.5 ...

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