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:

Components
1. Steering wheel 2. Steering column & EPS unit assembly 3. Universal joint assembly 4. Steering gear box ...

Failure Diagnosis
1. In principle, ESC and TCS controls are prohibited in case of ABS failure. 2. When ESC or TCS fails, only the failed system control is pr ...

Oil Pump Unit (OPU) Inspection
OPU Problem Inspection Procedure 1. TEST OPU GROUND CIRCUIT: Measure resistance between OPU and chassis ground using the backside of OPU harness connector ...

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