Chabot College/Las Positas College s2

Chabot College Fall 2005

Course Outline for Automotive Technology 61B FUEL INDUCTION, EMISSION AND COMPUTER CONTROL SYSTEMS II

Catalog Description:

61B - Fuel Induction, Emission and Computer Control Systems II 3.5 units (May be repeated three times)

Continuation of Automotive Technology 61A with emphasis on emission control, fuel injection and computer control systems. Includes software/hardware concepts and applications, sensor and control circuits, diagnosis and repair of systems/components. May not receive credit if Automotive Technology 71 has been completed. Prerequisite: Automotive Technology 61A or equivalent. 2 hours lecture, 5 hours laboratory.

Prerequisite Skills:

Before entering the course the student should be able to:

1. inspect engine assembly for fuel, oil, coolant, and other leaks; 2. diagnose abnormal exhaust color, odor, and sound; 3. perform engine vacuum analysis; 4. prepare 4 or 5 gas analyzer; obtain exhaust readings, interpret readings and determine necessary action; 5. retrieve and record stored OBD I diagnostic trouble codes; clear codes; 6. inspect and test mechanical and electrical fuel pumps and pump control systems for pressure, regulation and volume, and perform necessary action; 7. replace fuel filters; 8. check and adjust idle speed and fuel mixture; 9. inspect the integrity of the exhaust manifold, exhaust pipes, muffler(s), catalytic converter(s), resonator(s), tail pipe(s), and heat shield(s); perform necessary action; 10. inspect throttle body, air induction system, intake manifold and gaskets for vacuum leaks and/or unmetered air; 11. diagnose emissions, and driveability problems resulting from malfunctions in the positive crankcase ventilation (PCV) system.

Expected Outcomes for Students:

Upon completion of the course, the student should be able to:

1. obtain and interpret scan tool data, retrieve and record stored OBD diagnostic trouble codes; 2. diagnose the causes of emissions or driveability concerns resulting from malfunctions in the computerized engine control system with or without diagnostic trouble codes; 3. inspect and test computerized engine control system sensors, powertrain control module (PCM), actuators, and circuits using a graphing multimeter (GMM)/digital storage oscilloscope (DSO), and perform necessary action; 4. access and use service information to perform step-by-step diagnosis; 5. check and adjust ignition system timing and timing advance/retard (where applicable); 6. diagnose hot or cold no-starting, hard starting, poor driveability, incorrect idle speed, poor idle, flooding, hesitation, surging, engine misfire, power loss, stalling, poor mileage, dieseling, and emissions problems on vehicles with carburetor and fuel injection systems; 7. perform exhaust system back-pressure test, and determine necessary action; Chabot College Course Outline for Automotive Technology 61B, Page 2 Fall 2005

8. diagnose malfunctions of emission control systems causing vehicle performance problems and determine necessary action; 9. adjust valves on engines with mechanical or hydraulic lifters; 10. diagnose and verify correct camshaft timing, and determine necessary action; 11. use vehicle dynamometer to perform emission testing, and engine performance/driveability issues.

Course Content

1. Fuel Injection Systems a. fuel delivery and storage b. fuel injectors c. pressure controls d. fuel delivery control 2. Emission Control Systems a. positive crankcase ventilation b. air injection systems c. air intake systems d. exhaust gas recirculation e. fuel evaporation f. catalytic converters 3. Computer Control Systems 4. Automotive Diagnostic Equipment a. oscilloscopes b. digital multimeters c. diagnostic analyzers d. dynamometer e. pressure and vacuum gauges f. exhaust gas analyzers g. specialized test equipment

Methods of Presentation:

1. Lecture/demonstrations (use of multimedia) 2. Laboratory 3. Laboratory work sheets 4. Guest speakers 5. Field trips

Assignments and Methods of Evaluating Student Progress:

1. Typical Assignments a. Read chapter on Electronic Fuel Injection and Operation and be prepared to discuss b. Complete worksheet utilizing information from lecture c. Demonstrate use of fuel pressure testing equipment d. Demonstrate use of the exhaust emission analyzers Chabot College Course Outline for Automotive Technology 61B, Page 3 Fall 2005

2. Methods of Evaluating Student Progress a. Class participation b. Laboratory projects c. Laboratory work sheets d. Homework e. Quizzes f. Tests on chapter sections g. Final examination (written and/or lab practical)

Textbook(s) (Typical):

Automotive Engine Performance: James D. Halderman, Prentice Hall, 2003

Special Student Materials:

1. Safety glasses 2. Shop/safety clothing 3. Three ring folder

RJ 09/2004 AT 61B course outline.doc