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 Owners Manual: Additional instructions(messages)
When the Smart Parking Assist System is operating, a message may appear regardless of the parking order. The messages will appear according to the circumstances. Follow the instructions provided while parking your vehicle with the Smart Parking Assist System. ✽ NOTICE • In the ...

Kia Cee'd Service Manual: Crash Pad Side Cover Components and components location
Component Location [LH]   1. Crash pad side cover [LH] [RH]   1. Crash pad side cover [RH] ...

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