See also:

Catalytic converter
(If installed) Hyundai vehicles are equipped with a monolith type three-way catalytic converter to reduce the carbon monoxide, hydrocarbons and nitrogen oxides contained in the exhaust gas. Exha ...

Performance
The Sonata Hybrid has a 166-horsepower, 2.4-liter four-cylinder engine and a 30-kilowatt electric motor that produce a combined 206 hp. This is a common setup for a hybrid, though the Sonata Hybri ...

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 sys ...