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
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Other information:
Description
Installed on the windshield glass, the auto defogging sensor judges and sends
signal to blow out wind for defogging if moisture occurs. On receiving the signal
from the sensor, the air conditioner control module restrains moisture and eliminates
fog by controllin ...
Removal and Installation
1.
Remove the drive belt.
(Refer to Timing System - "Drive Belt")
2.
Remove the drive belt auto tensioner pulley (A).
Tightening torque :
53.9 - 63 ...