Hyundai Sonata: Engine Control System / Knock Sensor (KS) Description and Operation

Description
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” Removal     • DON’T remove the camshaft pos ...

Knock Sensor (KS) Specifications
Specification ItemSpecificationResistance(M?)4.87 ...

Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: Clock
With AVN system You can set the clock by using the Navigation system. GPS Time check The clock is automatically updated through the navigation system. GPS Time non-check The clock can be manually adjusted. 1. Select the "System Settings" on the "INFO/Setup" screen. 2. Select the "Date/Time". 3. Sel ...

Hyundai Sonata LF 2014-2019 Owners Manual: Bulb Wattage & Tires and Wheels
Bulb Wattage Tires and Wheels If your vehicle is not equipped with a compact spare tire, your vehicle will be equipped with a Tire Mobility Kit. CAUTION When replacing tires, use the same size originally supplied with the vehicle. Using tires of a different size can damage the related parts or ...

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