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:

Fuel Pressure Control Valve. Schematic Diagrams
Circuit Diagram (M/T) (A/T) ...

Special Service Tools
Special Service Tools Tool (Number and name) Illustration Use 09200-38001,3N000 (Beam) 09200-2S100 (Adapter) 09200-2S200 (Supporter) ...

SRS components and functions
The SRS consists of the following components: 1. Driver's front air bag module 2. Passenger's front air bag module 3. Side impact air bag modules 4. Curtain air bag modules 5. Retractor ...