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: Propeller Shaft Repair procedures
Removal 1. After making a match mark on the flange yoke and transaxle companion, remove the propeller shaft mounting bolts (A). Tightening torque : 49.0 - 63.7 N.m (5.0 - 6.5 kgf.m, 36.1 - 47.0 lb-ft) ...

Hyundai Kona (OS) 2018-2025 Service Manual: Curtain Airbag (CAB) Module Components and components location
Components 1. Curtain Air Bag (CAB) ...