Hyundai Accent: Knock Sensor (KS). Description and Operation

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 ...

See also:

Installation
1. Reassemble the steering wheel remote control switch after connecting the connector. 2. Reassemble the steering wheel. ...

Removal
1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Disconnect the engine coolant temperature sensor con ...

Radial-ply tires
Radial-ply tires provide improved tread life, road hazard resistance and smoother high speed ride. The radial- ply tires used on this vehicle are of belted construction, and are selected to comple ...