Kia Optima: Knock Sensor (KS). Description and Operation
Description
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.
Installation
•
Install the component with the specified
torques.
•
Note that internal damag ...
Knock Sensor (KS). Specifications
Specification
Item
Specification
Capacitance (pF)
850 ~ 1,150
...
See also:
Specifications
Fuel Delivery System
Items
Specification
Fuel Tank
Capacity
70 lit. (18.5 U.S.gal., 74.0 U.S.qt., 61.6 Imp.qt.)
...
Replacement
1.
Disconnect the negative (-) battery
terminal.
2.
Remove the main crash pad lower
cover (A).
3.
Disconnect the blower resistor
connector ...
Removal
Timing chain cover removal is not required for this procedure.
•
Use fender covers to
avoid damaging painted surfac ...