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 (2015-2026) Service Manual: Repair procedures

Inspection Battery Voltage and Status Check the battery voltage and status using the battery tester. Battery Terminal 1. Move back and forth to check that the battery terminals (A) are loose or corroded.If the terminals are corroded, clean them. ...

Kia Sportage QL (2015-2026) Service Manual: Fuel Pump Control Module (FPCM) Schematic diagrams

Circuit Diagram Terminal Illustration Terminal Function Pin No. Description 1 Fuel sender ground 2 Fuel pressure sensor (FPS) signal input 3 ...