Hyundai Equus: Knock Sensor (KS) Description and Operation
Second generation VI (2009–2025) / Hyundai Equus VI 2009-2025 Service Manual / Engine Control/Fuel System / Engine Control System / 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”
Removal
•
DON’T remove the camshaft position se ...
Knock Sensor (KS) Specifications
Specification
ItemSpecificationCapacitance (pF)950 ~ 1,350
...
See also:
Cleaning the interior window glass
If the interior glass surfaces of the vehicle become fogged (that is, covered
with an oily, greasy or waxy film), they should be cleaned with glass cleaner. Follow
the directions on the glass clea ...
Battery Troubleshooting
Troubleshooting
...
Electronic Active Headrest Description and Operation
Description
The electronic active headrest is designed to trigger the
headrest forward and upward when impact sensor detects a rear (or front)
impact.
This helps to prevent the driver's and fr ...
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