Kia Cee'd: Engine Control System / Knock Sensor (KS) Description and operation
Kia Cee'd JD 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 JD Service Manual: Manual Transaxle Oil Repair procedures
Inspection
Manual Transaxle Oil level Check
•
Check intervals: 40000 miles / 4years (60000 km / 4 years)
•
If a leak is dete ...
Kia Cee'd JD Service Manual: Rear Door Module Components and components location
Component Location
1. Rear door module
...