![Kia Rio: CVVT (Continuously Variable Valve Timing) System: [CVVT System Mode] - Exhaust Emission Control System - Emission Control System - Kia Rio UB 2012-2020 Service Manual](images/general/kia-rio.jpg)
Kia Rio: CVVT (Continuously Variable Valve Timing) 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 (Continuously Variable Valve Timing) System: Operation PrincipleComponents Location
1. Torsion beam axle
2. Shock absorber
3. Coil spring assembly
4. Rear disc
...
Rear Wheel Speed Sensor Inspection
1.
Measure the output voltage between the terminal of the wheel speed
sensor and the body ground.
...
Spark Plug: Description
A spark plug is a device for delivering electric current from an ignition
system to the combustion chamber of a spark-ignition engine to ignite the compressed
fuel/air mixture therein by mean ...
