Hyundai Sonata: Catalytic Converter. Description and Operation
Description
The catalytic converter of the gasoline engine is a three way catalyst.
It oxidizes carbon monoxide and hydrocarbons (HC), and separates oxygen from
the oxides of nitrogen (NOx).
There are two types of three-way catalyst; Palette type and Monolith type.
[SULEV]

[ULEV]

Description and Operation
Description
Exhaust emissions (CO, HC, NOx) are controlled by a combination of engine
modifications and the addition of special control components.
Modifications to the combustion chamber, ...
CVVT (Continuously Variable Valve Timing) System. 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 ...
See also:
Oil Cooler. Repair procedures
Removal
1.
Loosen the drain plug, and drain the coolant. Remove
the radiator cap to speed draining.
2.
Disconnect the oil cooler coolant h ...
Engine coolant
The high-pressure cooling system has a reservoir filled with year-round antifreeze
coolant. The reservoir is filled at the factory. Check the antifreeze protection
and coolant level at least once ...
Canister Close Valve (CCV). Description and Operation
Description
Canister Close Valve (CCV) is installed on the canister ventilation line.
It seals evaporative emission control system by shutting the canister from the
atmosphere when leakage d ...
