Kia Optima Hybrid: Engine Control System / Knock Sensor (KS) Description and Operation

Kia Optima Hybrid (TF HEV) 2016-2020 Service 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 • Do not remove the camshaft position sensor while engine is ...

Knock Sensor (KS) Specifications

Specification ItemSpecificationCapacitance (pF)850 ~ 1,150 ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Rear Window Glass Repair procedures

Removal • Put on gloves to protect your hands. • Be careful not to damage the painted surface. 1. Remove the following items. • Roof moulding (Refer to the BD group- "Panoramaroof") • Rear seat (Refer to the BD group- "Rear Seat") • Rear pillar trim (Refer to the BD group- "Interior ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Steering Gear box Components and Components Location

Components 1. Tie rod end2. Lock nut3. Bellows 4. Bellows band5. Tie rod6. Rack bar 7. Dust packing 8. Dust cap9. Oil seal10. Pinion plug11. Pinion assembly12. Yoke plug13. Yoke spring14. Support yoke assembly 15. Rack housing ...