Kia Sportage: 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.

Knock Sensor (KS) Specifications

Specification Item Specification Capacitance (pF) 850 - 1,150 Resistance (MΩ) About 4.87 ...

Knock Sensor (KS) Schematic diagrams

Circuit Diagram Harnecss Connector ...

Other information:

Kia Sportage QL (2015-2024) Service Manual: Rail Pressure Sensor (RPS) Troubleshooting

Signal Waveform Service data review releated with fuel pressure sensor at idle and acceleration. (Inspect low pressure fuel line between fuel pump and high pressure pump first when the pressure of low pressure line is displayed low at idle.) A : Idle B : Accele ...

Kia Sportage QL (2015-2024) Service Manual: Battery Sensor Specifications

Specifications Battery Sensor Item Specification Rated Voltage (V) 12 - 14 Quiescent Current (uA) Max. 175 Pin 2 (B+, LIN) ...