Kia Cadenza: Engine Control System / Knock Sensor (KS) Description and Operation

Kia Cadenza YG 2016-2025 Service Manual / Engine Control / Fuel System / 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. The two Knock Sensor (KS) are installed inside the V-valley of 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 ca ...

Knock Sensor (KS) Specifications

Specification ItemSpecificationCapacitance (pF)950 ~ 1,350Resistance (MΩ)4.87 ...

Other information:

Kia Cadenza YG 2016-2025 Service Manual: Components and Components Location

Component Location Index Engine Room 1. Receiver Drier2. Condenser3. Service Port (High Pressure)4. Service Port (Low Pressure)5. APT6. Compressor7. Expension Valve Interior ...

Kia Cadenza YG 2016-2025 Service Manual: Rheostat Repair procedures

Inspection 1. Disconnect the negative (-) battery terminal. 2. Remove the passenger compartment juction box cover. 3. Remove the side cover (A). 4. Remove the crash pad side switch assembly (A) by pushing it through side cover hole. Put on gloves to prot ...