Hyundai Kona: Engine Control System / 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.

Camshaft Position Sensor (CMPS) Repair procedures

Inspection 1. Check the signal waveform of the CMPS and CKPS using the GDS. Specification : Refer to "Wave Form" ...

Knock Sensor (KS) Specifications

Specification Item Specification Resistance (MΩ) 4.87 ...

Other information:

Hyundai Kona (OS) 2018-2025 Service Manual: A/C Pressure Transducer Description and operation
Description The A/C Pressure Transducer (APT) converts the pressure value of high pressure line into voltage value after measuring it. By converted voltage value, engine ECU controls the cooling fan by operating it high speed or low speed. Engine ECU stops the opera ...

Hyundai Kona (OS) 2018-2025 Service Manual: Ignition Coil Specifications
Specification Item Specification Primary Coil Resistance (Ω) 0.56 ± 10% [20°C (68°F)] Pin 4 ...