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: Camshaft Position Sensor (CMPS) Description and Operation

Description Camshaft Position Sensor (CMPS) is a hall sensor and detects the camshaft position by using a hall element. It is related with Crankshaft Position Sensor (CKPS) and detects the piston position of each cylinder which the CKPS can''t detect. The CMPS is installed on engine head cover and uses ...

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

Components 1. Steering wheel2. Steering column3. ECU4. Motor5. Steering gear box MDPS Circuit Diagram Harness Connector TypePin NoDescriptionBattery1Battery -2Battery +Vehicle1IGN2-3-4-5-6-7High_CAN8Low_CAN ...