Introduces electronic computer-controlled fuel delivery and metering systems. Discusses electronic emission controls and environmental impact of tailpipe emissions. Comparison of mechanical historical fuel and emissions control systems to modern electronic systems. Discussion of onboard diagnostic system monitors. Provides exposure to electronic diagnostic equipment. Also, discusses connected vehicle monitoring and autonomous over-the-air controller updates.
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, Filters, and Air Induction Systems
- Electronic Drive-by-Wire Throttle Control Systems
- Intake and Exhaust Manifolds
- Electronic Fuel Injection Systems
- Electronic Powertrain Control Systems
- Onboard Diagnostics and System Monitors
- Ethanol Based Fuel Systems
- Supercharging and Turbocharging
- Flexible Fuel Systems
- Positive Crankcase Ventilation
- Secondary Air Injection Systems
- Catalyst Systems and Monitors
- Evaporative Emissions Systems and Monitors
- Electro-Mechanical Exhaust Gas Recirculation Systems and Monitors
- Electrical Exhaust Gas Recirculation Systems and Monitors
- Recognize and identify selected modern fuel systems components.
- Explain Stoichiometric air/fuel ratios for gasoline and alternative fuels.
- Identify components of the fuel storage and delivery systems.
- Identify components of a fuel injection system.
- Explain the function of the air induction system.
- Identify and explain the components of catalyst system.
- Measure fuel pressure in primary and secondary fuel delivery systems.
- Perform electronic fuel injector flow tests.
- Perform fuel injector leak down tests.
- Measure electrical parameters of sensors and actuators.
- Diagnose engine malfunctions relating to the vehicle fuel management system with diagnostic scan tool.
- Access and report data from emissions control systems OBD Monitors.
- Identify and report fuel trim data in relationship to oxygen sensor/air fuel sensor operation.
- Use diagnostic trouble codes to analyze vehicle drive ability symptoms.
- Identify type of positive crankcase ventilation system and perform flow testing.
- Apply tailpipe emissions control data to engine diagnostic procedures and engine evaluation.
- Preform bi-directional controls of fuel systems to affect testing and diagnosis of powertrain management systems.
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.