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:

Removable towing hook
1. Open the trunk lid/tailgate, and remove the towing hook from the tool case. 2. Remove the hole cover pressing the lower part of the cover on the bumper. 3. Install the towing hook by turning it ...

Checking Cables And Wires
1. Check the terminal for tightness. 2. Check terminals and wires for corrosion from battery electrolyte, etc. 3. ...

Installation
1. Remove the ignition key from the vehicle. 2. Disconnect the battery negative cable and wait for at least three minutes. ...