Hyundai Equus: Knock Sensor (KS) Description and Operation
Second generation VI (2009–2024) / Hyundai Equus VI 2009-2024 Service Manual / Engine Control/Fuel System / Engine Control System / Knock Sensor (KS) Description and Operation
Second generation VI (2009–2024) / Hyundai Equus VI 2009-2024 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. 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:
Repair procedures
Inspection
Check it by the procedure below to see if the function of the ECM is normal.
1.
Turn the ignition key to the "ON" position.
2.
Cover the front looking sensor to stop functioning.
...
Troubleshooting
Troubleshooting
Trouble symptomProbable causeRemedyHard steeringImproper front wheel alignmentRepairExcessive turning resistance of lower arm ball jointReplaceFlat tireAdjustNo power assistRepair ...
Spark Plug Repair procedures
Inspection
[On vehicle inspection]
1.
Accelerate the engine to about 3,000 rpm 3 times or more.
2.
Remove the spark plug.
3.
Check the spark plug visually.
If the electrode is dry, the ...
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