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Home >> Hyundai >> 2020 >> Sonata SEL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Exhaust Emission Control System - 1.6L (Except HEV)) >> CVVT (Continuously Variable Valve Timing) System >> Description & Operation >> Description >> [Intermediate Lock CVVT]

[Intermediate Lock CVVT]

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It increases the retarded amount compared to the default state to expand the operating range of the variable valve timing system.

The cam phase is fixed mechanically so that it is locked at the middle position.

G14524827Courtesy of HYUNDAI MOTOR AMERICA
  • Effect

    Improves fuel efficiency by approx. 1.7%.


Expands the intake CVVT operating range.
(Increases the retarded amount by up to 30° compared to the default state.)
LIVC (Late Intake Valve Close)
  1. Improves fuel efficiency by reducing pumping loss.
  2. Improves knocking characteristics by reducing compression ratio.
G14524828Courtesy of HYUNDAI MOTOR AMERICA