Kia Sportage: Knock Sensor (KS): Description and Operation
Third generation SL (2010–2016) / Kia Sportage SL Service & Repair Manual / Engine Control / 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”
Removal
•
DON’T remove the c ...
Knock Sensor (KS): Specifications
Specification
ItemSpecificationCapacitance (pF)850 ~ 1,150
...
Other Information:
ETC (Electronic Throttle Control) System: Troubleshooting
Fail-Safe Mode
ItemFail-SafeETC MotorThrottle valve stuck at 5°TPSTPS 1 faultECM looks at TPS2TPS 2 faultECM looks at TPS1TPS 1,2 faultThrottle valve stuck at 5°APSAPS 1 faultECM looks at APS 2 ...
Seat belt warning
As a reminder to the driver, the seat belt warning light will blink for approximately
6 seconds each time you turn the ignition switch ON, regardless of belt fastening.
If the driver's seat b ...
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