Kia Cee'd: Engine Control System / Knock Sensor (KS) Description and operation

Kia Cee'd Service Manual / 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” ...

Knock Sensor (KS) Specifications
Specification   Item Specification Capacitance (pF) 950 ~ 1,350 Resistance (MΩ) 4.87 ...

Other information:

Kia Cee'd Service Manual: Emergency Call (eCall) Unit Repair procedures
Removal    Carry out the Test Mode in the following cases. – Replacing the eCall unit – Replacing the Back-up Battery (BUB) ...

Kia Cee'd Owners Manual: Closing the tailgate
❈ The actual luggage room in the vehicle may differ from the illustration. Lower and push down the tailgate firmly. Make sure that the tailgate is securely latched. WARNING Make sure your hands, feet and other parts of your body are safely out of the way before closing the tailgate. ...

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