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Unit 3 Gasoline Fuel Systems

The purpose of the fuel system of the internal combustion engine is to provide a combustible mixture of fuel and air to the engine cylinders. The ratio of fuel to air must always be in correct proportions regardless of the speed and load of the engine.

Here you will learn about different types of gasoline fuel systems, how the components function to provide fuel to the engine in proper quantities, and servicing of the gasoline fuel system.

3-1 Gasoline Fuel Systems

Learning Objectives: Describe the different types of gasoline fuel systems, how the components function to provide fuel to the engine in proper quantities, and servicing of the gasoline fuel system.

3-2 Principles of Carburetion

Learning Objectives: Describe the operating systems and principles of a simple carburetor and a computerized controlled carburetor. Identify the different carburetor accessories and their functions. Identify and describe possible carburetor troubles and quick system checks.

3-3 Gasoline Fuel Injection Systems

Learning Objectives: Identify and describe the different gasoline fuel injection systems.

3-4 Exhaust and Emission Control Systems

Learning Objectives: Identify components of the exhaust and emission control systems. Describe the operation of the exhaust and emission control systems.

David L. Heiserman, Editor

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Revised: June 06, 2015