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.
Goals, Topics, and Objectives
- Introduction to Fuel Systems an Emission Controls
- Engine Operating Principles
- Gasoline and Alternative Fuels
- Engine Fuel-Air Requirements
- Fuel Tanks, Lines, and Evaporative Emission Controls
- Fuel Pumps and Filter
- Air Cleaners and Filters
- Intake and Exhaust Manifolds
- Electronic Fuel Metering Control
- Electronic Engine Control Systems
- Gasoline Fuel-Injection Systems
- Supercharging and Turbocharging
- Variable and Flexible Fuel Systems
- Positive Crankcase Ventilation, Air Injection Systems, and Catalytic Converters
- Recognize and identify selected modern fuel systems components.
- Explain Stoichiometric air/fuel ratios for gasoline and alternative fuels.
- Identify components of the fuel storage sub-system.
- Identify components of a Fuel Injection system.
- Explain the function of the Induction and Exhaust system.
- Measure fuel rail pressure – load and no-load.
- Perform injector electrical tests.
- Perform injector leakdown tests.
- Measure electrical parameters of sensors and actuators.
- Diagnose engine malfunctions relating to the vehicle fuel management system.
- Perform basic fuel system feedback tests.
- Use diagnostic trouble codes to analyze vehicle drive ability symptoms.
Assessment and Requirements
Tests, Lab Reports and a comprehensive final examination. Measurable objectives will be evaluated by the instructor based on the accuracy and proficiency of objective completion.
Students must take notes on demonstrations, carefully read and analyze assigned course materials, and perform exercises to determine their competence in servicing modern fuel management systems.