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
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 pos ...
Knock Sensor (KS) Specifications
Specification
ItemSpecificationCapacitance (pF)950 ~ 1,350
...
See also:
Rearview camera (If equipped)
The rearview camera will activate when the back-up light is ON with the ignition
switch ON and the shift lever in the R position.
This system is a supplemental system that shows behind ...
Manifold Absolute Pressure Sensor (MAPS) Repair procedures
Inspection
1.
Connect the GDS on the Data Link Connector (DLC).
2.
Measure the output voltage of the MAPS at idle and IG ON.
Specification: Refer to "Specification"
Removal
1.
Tur ...
ESP OFF Switch Repair procedures
Inspection
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable
2.
Remove the crash pad side cover.
3.
Remove the lower panel.
(Refer to Body - "Crash Pad")
4.
Re ...
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