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:

Valve Body. Description and Operation
Description The valve body is essential to automatic transaxle control and consists of various valves used to control the oil feed from the oil pump. Specifically, these valves consist of pressure regulator ...

Troubleshooting
Troubleshooting Symptom Possible cause Remedy One lamp does not light (all exterior) Bulb burned out Replace bulb Socket, wiring or ground faulty Repair if necessary Head lamps do not light Bulb burned ...

Keyless unlock settings
(Option/accessory.) Several different sequences are available for keyless unlocking. To change this setting: Tap Settings in the center display's Top view. Tap My Car Locking Keyless Unlock. Select alternative: ...