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.

Specification
Item
Specification
Capacitance (pF)
850 - 1,150
Resistance (MΩ)
About 4.87
...
Circuit Diagram
Harnecss Connector
...
Other information:
Specification
Item
Specification
Control type
ON/OFF
Voltage (V)
9 - 16
Control pressure kpa (kgf/cm², psi)
0 - 490.33 (0 - 5.0, 0 - 71.12)
Coil resis ...
The Electronic Stability control (ESC) system is designed to stabilize the vehicle
during cornering maneuvers. ESC checks where you are steering and where the vehicle
is actually going. ESC applies the brakes on individual wheels and intervenes with
the engine management system to stabilize ...