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 |
Middle | * Valve Under-lap * Improvement of combustion stability |
| (2) Part Load | Retard | * Reduction of HC | Retard | * Reduction of pumping loss |
| (3) Low Speed/High Load | Retard | * Reduction of pumping loss | Advance | * Improvement of volumetric efficiency |
| (4) High Speed/High Load | Advance | * Reduction of pumping loss | Retard | * Improvement of volumetric efficiency |