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
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Circuit Diagram
Harnecss Connector
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Other information:
Adjustment
TCM adaptive values learning
•
TCM adaptive values learning : When shift shock occurs or parts related
with the transaxle are replaced, TCM learning should be performed.
•
In the following case, TCM learning ...
Safety Function of Power
Window
When driver door power window auto-up switch is operated, safety function is
activated.
1.
Safety function condition
When the force of 100N (using the 10N/mm spring) is detected while the
window is rising, the ...