Kia Soul: [CVVT System Mode] - Exhaust Emission Control System - Emission Control SystemKia Soul: [CVVT System Mode]

Kia Soul 2014-2019 PS Service Manual / Emission Control System / Exhaust Emission Control System / [CVVT System Mode]

(1) Low Speed / Low Load
(2) Part Load


(3) Low Speed / High Load
(4) High Speed / High Load



Driving
Condition
Exhaust Valve
Intake Valve
Valve
Timing
Effect
Valve
Timing
Effect
(1) Low Speed
/Low Load
Completely
Advance
* Valve Under-lap
* Improvement of combustion stability
Completely
Retard
* Valve Under-lap
* Improvement of combustion stability
(2) Part Load
Retard
* Increase of expansion work
* Reduction of pumping loss
* Reduction of HC
Retard
* Reduction of pumping loss
(3) Low Speed
/High Load
Retard
* Increase of expansion work
Advance
* Prevention of intake back flow (Improvement of volumetric efficiency)
(4) High Speed
/High Load
Advance
* Reduction of pumping loss
Retard
* Improvement of volumetric efficiency
    CVVT  Operation Principle
    The CVVT has the mechanism rotating the rotor vane with hydraulic force generated by the engine oil supplied to the advance or retard chamber in accordance with the CVVT oil control valve con ...

    See also:

    Evaporator Temperature Sensor Replacement
    1. Disconnect the negative (-) battery terminal. 2. Remove it console side cover (A) by pushing it rearward. [RH] ...

    Photo Sensor Replacement
    1. Disconnect the negative (-) battery terminal. 2. With a flat-head screwdriver, remove the photo sensor (A) from the center of the defros ...

    Cylinder Block Components
    1.  Cylinder block 2.  Ladder frame 3.  Crank shaft 4.  Crank shaft upper bearing 5.  Crank shaft lower bearing 6.  Thrust bearing 7.&nbs ...