See also:

Emission control system
Your Hyundai is equipped with an emission control system to meet all requirements of the U.S. Environmental Protection Agency or California Air Resources Board. There are three emission control sy ...

Crankcase Emission Control System
The positive crankcase ventilation system is employed to prevent air pollution caused by blow-by gases being emitted from the crankcase. This system supplies filtered fresh air to the crankcase th ...

2011 Hyundai Sonata review
I've gotten tired of writing about the next good Hyundai. And according to the late night profanity-laced messages left on my voice mail, so have Detroit readers. So let's just stop acting surpr ...