Hyundai Santa Fe: Knock Sensor (KS). Description and Operation - Engine Control System - Engine Control/Fuel SystemHyundai Santa Fe: 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 sensor while the engine is running or ...

Knock Sensor (KS). Specifications
Specification Item Specification Capacitance (pF) 850 ~ 1,150 ...

See also:

Hazard warning flasher
Type A Type B The hazard warning flasher should be used whenever you find it necessary to stop the car in a hazardous location. When you must make such an emergency stop, always pull off the road as far ...

Components and Components Location
Component Location 1. Head lamp leveling unit and sensor 2. Head lamp leveling actuator ...

Folding the rear seat
The rear seatbacks can be folded to facilitate carrying long items or to increase the luggage capacity of the vehicle. WARNING Never allow passengers to sit on top of the folded down seatback while the ...