Hyundai Azera: Knock Sensor (KS) Description and Operation
Fifth generation HG (2011–2024) / Hyundai Azera 2011-2024 Service Manual / Engine Control/Fuel System / Engine Control System / Knock Sensor (KS) Description and Operation
Fifth generation HG (2011–2024) / Hyundai Azera 2011-2024 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. The two Knock Sensor
(KS) are installed inside the V-valley of 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 ~ 1,350Resistance (M?)4.87
...
See also:
Engine overheat
If your temperature gauge indicates overheating, you experience a loss of power,
or hear loud pinging or knocking, the engine is probably too hot. If this happens,
you should:
1. Pull off the road ...
Side impact air bag
Your vehicle is equipped with a side impact air bag in each front and outboard
rear seat. The purpose of the air bag is to provide occupants with additional protection
than that offered by the sea ...
Vehicle stability management (VSM)
This system provides further enhancements to vehicle stability and steering responses
when a vehicle is driven on a slippery road or a vehicle detects changes in coefficient
of friction between righ ...
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