Hyundai Elantra AD (2016-2020) Service Manual: CVVT Oil Control Valve (OCV) Description and Operation
Description
Continuous Variable Valve Timing (CVVT) system advances or
retards the valve timing of the intake and exhaust valve in accordance
with the ECM control signal which is calculated by the engine speed and
load.
By controlling CVVT, the valve over-lap or under-lap occurs,
which m ...
Hyundai Elantra AD (2016-2020) Owners Manual: Maintenance Services
You should exercise the utmost care to prevent damage to your vehicle and injury
to yourself whenever performing any maintenance or inspection procedures.
We recommend you have your vehicle maintained and repaired by an authorized HYUNDAI
dealer. An authorized HYUNDAI dealer meets HYUNDAI’s h ...