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:
Fuses
A vehicle’s electrical system is protected from electrical overload damage by
fuses.
This vehicle has two fuse panels, one located in the driver’s side kick panel,
the other in the engine compa ...
Removal
Passenger Compartment Junction Box (SJB)
1.
Disconnect the negative(-) battery
terminal.
2.
Remove the crash pad lower panel
(A).(Refer to the BD group - "Crash p ...
Transaxle Control Module (TCM). Description and Operation
Description
Transaxle Control Module (TCM) is the automatic transaxle's brain. The module receives
and processes signals from various sensors and implements a wide range of transaxle
controls ...