Kia Optima Hybrid: 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: Components and Components Location


Components 1. Driver Airbag (DAB)2. Steering Wheel3. Clock Spring4. Seat Belt Pretensioner (BPT)5. Pressure Side Impact Sensor (P-SIS)6. Side Impact Sensor (SIS)7. Side Airbag (SAB)8. Passenger Airbag (PAB)9. Front Impact Sensor (FIS)10. Curtain Airbag (CAB)11. Supplemental Restraint System Control Module(SRSCM)12. ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Fuel Tank Repair procedures


Removal 1. Release the residual pressure in fuel line (Refer to “Release Residual Pressure in Fuel Line”). 2. Lift the vehicle. 3. Remove the front side cover (A) and rear side cover (B). 4. Disconnect the fuel feed tube hose (A), leveling hose (B) and vapor hose quick-connector C). 5. Remove rear ...

© 2021 Copyright www.koptimatfhev.com