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: Manifold Absolute Pressure Sensor (MAPS) Specifications

Specification Pressure [kPa (kgf/cm², psi)]Output Voltage (V)20.0 (0.20, 2.90)0.7946.66 (0.47, 6.77)1.84101.32 (1.03, 14.7)4.0 ...

Kia Cadenza YG 2016-2025 Owners Manual: Power windows

The ENGINE START/STOP button must be in the ON position for power windows to operate. Each door has a power window switch that controls the door’s window. The driver has a power window lock switch which can block the operation of rear passenger windows. The power windows can be operat ...