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” ...

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

    See also:

    Theft-alarm stage
    The alarm will be activated if any of the following occurs while the system is armed. A door is opened without using the transmitter, smart key or mechanical key. The tailgate is opened wit ...

    Fuel requirements
    Your new vehicle is designed to use only unleaded fuel having a pump octane number ((R+M)/2) of 87 (Research Octane Number 91) or higher. Your new vehicle is designed to obtain maximum performance ...

    Front Door Outside Handle. Repair procedures
    Replacement 1. Remove the hole plug (B). 2. After loosening the mounting bolt, then remove the front door outside handle cover (A). ...