Hyundai Accent Manuals

Hyundai Accent: Knock Sensor (KS). Description 
and Operation - Engine Control System - Engine Control/Fuel System - Hyundai Accent 2010-2019 Service ManualHyundai Accent: 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. • ...

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

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