305 Copyright by Goodheart-Willcox Co., Inc. Chapter 15 Fuel and Emission Control Systems Technical Terms air check valve air distribution manifold air injection system air pump air supply system carbon monoxide (CO) catalyst catalytic converter charcoal canister data link connector (DLC) diagnostic trouble code (DTC) diverter valve EGR valve electronic fuel injection (EFI) emissions evaporative emissions control (EVAP) system filler neck fuel filter fuel metering system fuel pump fuel supply system fuel tank fuel tank pickup unit heated air inlet system hydrocarbons (HC) liquid-vapor separator multiport injection noid light on-board diagnostics generation one (OBD I) on-board diagnostics generation two (OBD II) oxides of nitrogen (NO X ) particulates PCV valve port fuel injection pulse air system purge line purge valve rollover valve scan tool three-way converters throttle body injection vapor lock After studying this chapter, you will be able to: • Identify the three subsystems of a fuel system. • Describe the function of the fuel supply system. • Service fuel lines and hoses, fuel filters, and fuel pumps. • Describe the function of the air supply system. • Describe the function of the fuel metering system. • List the basic components of a gasoline injection system. • Identify the two types of gasoline injection. • Explain on-board diagnostic systems. • Use a noid light injector circuit tester. • Describe the function of the emission control system. • Identify the sources of vehicle emissions. • List the four types of emissions produced by a vehicle. • Describe engine modifications for emission control. • List the systems used to control emissions.