Hyundai Sonata: 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.
Camshaft Position Sensor (CMPS). Repair procedures
Inspection
1.
Check the signal waveform of the CMPS and CKPS using the GDS.
Specification:
Refer to “Wave Form”
...
Knock Sensor (KS). Specifications
Specification
Item
Specification
Capacitance (pF)
850 ~ 1,150
...
See also:
Clutch Cover And Disc. Repair procedures
Removal
1.
Remove the transaxle assembly. (Refer to "Manual transaxle system"
in MT group)
2.
Remove the clutch cover bolts. No ...
Auto up/down window
Pressing or pulling up the power window switch momentarily to the second detent
position (6) completely lowers or lifts the window even when the switch is released.
To stop the window at the des ...
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 ...