2008 Hyundai Santa Fe Owner's Manual - Page 324

EMISSION CONTROL SYSTEMS 7 3 CATALYTIC CONVERTER Purge Control Solenoid Valve (PCSV) The purge control solenoid valve is controlled by the Engine Control Module (ECM); when the engine coolant temperature is low during idling, the PCSV closes so that evaporated fuel is not taken into the engine. After the engine warms-up during ordinary driving, the PCSV opens to introduce evaporated fuel to the engine. H020A01A-AAT ! WARNING: Catalytic Converter H010D01A-AAT OCM055018L 3. Exhaust Emission Control System The Exhaust Emission Control System is a highly effective system which controls exhaust emissions while maintaining good vehicle performace. All 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. Exhaust gases passing through the catalytic converter cause it to operate at a very high temperature. The introduction of large amounts of unburned gasoline into the exhaust may cause the catalytic converter to overheat and create a fire hazard. This risk may be reduced by observing the following: o Use unleaded fuel only. o Maintain the engine in good operating condition. Extremely high catalytic converter temperatures can result from improper operation of the electrical, ignition or multiport electronic fuel injection. o If your engine stalls, pings, knocks, or is hard to start, have your Hyundai dealer inspect and repair the problem as soon as possible. o Avoid driving with a very low fuel level. Running out of gasoline may cause the engine to misfire and result in damage to the catalytic converter. o Avoid idling the engine for periods longer than 10 minutes. o The vehicle should not be pushed or pulled to get started. This may cause the catalytic converter to overheat and create a fire hazard.