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: Cylinder Head Components and components location
Components 1. Cylinder head assembly 2. MLA 3. Retainer lock 4. Retainer 5. Valve stem seal 6. Valve spring 7. Valve spring seat 8. OCV (Oil Control Valve) 9. Exhaust valve 10. Intake valve 11. Cylinder head gasket ...

Hyundai Kona (OS) 2018-2025 Service Manual: Front Impact Sensor (FIS) Repair procedures
Removal    • Removal of the airbag must be performed according to the precautions/ procedures described previously. • Before discon ...