Introduces the types of fuels and air/fuel ratio requirements of the various fuels used in current automotive engines, along with the construction and operation of fuel delivery systems. Discusses fuel pumps, fuel lines, fuel filters, and storage tanks. Fuel system types include returnable electronic fuel injection, returnless electronic fuel injection, and gasoline direct fuel injection. Also discusses elements of mechanical and electronic automotive emissions. This course also covers the use of diagnostic scan tools and covers vehicle programming principals.