Car Care Guide - (Page 33) BE AWARE OF YOUR CAR Emission System WHAT IS IT? Your car’s emission system keeps the engine running cleanly and efficiently in all sorts of operating conditions. A flashing light indicates a problem that is currently happening and may require immediate attention. Failure to do so can reduce your mileage per gallon of fuel or cause your vehicle to pollute. WHAT DOES IT DO? Your car’s emission system controls the emissions, exhaust and pollutants using an array of sensors, computerized engine controls and the exhaust components. The emission system substantially reduces harmful gases such as carbon monoxide (CO), unburned hydrocarbons (HC) and oxides of nitrogen (NOx), and prevents harmful gasoline vapors from escaping at the fuel tank. TYPICAL WEAR AND TEAR Some factors affecting the emission system include: � � � � � � � � Driving and atmospheric conditions Mileage Vehicle age Type of spark plug electrode material Maintenance history Poor spark Bad fuel Damaged or worn sensors 33 ARE YOU AWARE? GOOD FUEL ECONOMY, PERFORMANCE AND LOW EMISSIONS ARE ALL INTERRELATED FOR AN EFFICIENTLY-OPERATING ENGINE.
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