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:
Limp Home Function
1.
Limp Home By TesterIf the
PCM(ECM) detects the fault of the SMARTRA or transponder, the PCM(ECM) will
allow limp home function of the immobilizer. Limp home is only possible
i ...
Good driving practices
Never move the shift lever from P (Park) or N (Neutral) to any other position
with the accelerator pedal depressed.
Never move the shift lever into P (Park) when the vehicle is in motion.
Be ...
Power windows
The ignition switch must be in the ON position for power windows to operate.
Each door has a power window switch that controls the door's window. The driver
has a power window lock switch whic ...