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

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 JD Service Manual: Oil Pump Components and components location
Components   1.  Timing chain cover 2.  Inner rotor 3.  Outer rotor 4.  Pump cover ...

Kia Cee'd JD Owners Manual: Pre-tensioner seat belt
Your vehicle is equipped with driver's and front passenger's pre-tensioner seat belts. The purpose of the pre-tensioner is to make sure that the seat belts fit tightly against the occupant's body in certain frontal collisions. The pre-tensioner seat belts may be activated in crashes wh ...