Chabot College
Fall 2008
Course Outline for Automotive Technology 71B
Powertrain and Vehicle Performance II
Catalog Description:
71B – Powertrain and Vehicle Performance II
May be repeated three times
4 Units
Continued study of electrical/electronic and fuel control systems, including engine management
systems, emission control systems, emissions testing, drivability and vehicle performance diagnosis
and repair. May not receive credit if Automotive Technology 71 has been completed. Prerequisite:
Automotive Technology 71A. 2.5 hours lecture, 5.5 hours laboratory
[Typical contact hours: lecture 43.75, laboratory 96.25]
Prerequisite Skills:
Before entering the course the student should be able to:
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diagnose the cause of brighter than normal, intermittent, dim, or no light operation in
lighting systems;
inspect, replace, and aim headlights and bulbs;
inspect and diagnose incorrect turn signal or hazard light operation;
inspect and test gauges and gauge sending units for cause of intermittent, high, low, or no
gauge readings;
inspect and test sensors, connectors, and wires of electronic instrument circuits;
diagnose incorrect wiper/washer operation, and perform necessary action;
diagnose incorrect operation of motor-driven accessory circuits, and determine necessary
action;
diagnose supplemental restraint system (SRS) concerns; determine necessary action;
diagnose body electronic system circuits using a scan tool;
obtain and interpret scan tool data, retrieve and record stored OBD diagnostic trouble
codes;
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;
access and use service information to perform step-by-step diagnosis;
diagnose ignition system related problems such as no-starting, hard starting, engine
misfire, poor drivability, spark knock, power loss on vehicles with electronic ignition
systems, and determine necessary action;
check and adjust ignition system timing and timing advance/retard (where applicable);
inspect and test ignition system pick-up sensor or triggering devices, and perform
necessary action.
Expected Outcomes for Students:
Upon completion of the course the student should be able to:
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obtain and interpret scan tool data, retrieve and record stored OBD diagnostic trouble
codes;
diagnose the causes of emissions or drivability concerns resulting from malfunctions in the
computerized engine control system with or without diagnostic trouble codes;
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;
access and use service information to perform step-by-step diagnosis;
Chabot College
Course Outline for Automotive Technology 71B, Page 2
Fall 2008
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diagnose ignition system related problems such as no-starting, hard starting, engine
misfire, poor drivability, spark knock, power loss, poor mileage, and emissions control
system concerns on vehicles with electronic ignition systems, and determine necessary
action;
check and adjust ignition system timing and timing advance/retard (where applicable);
inspect and test ignition system pick-up sensor or triggering devices, and perform
necessary action;
diagnose hot or cold no-starting, hard starting, poor drivability, 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;
perform exhaust system back-pressure test, and determine necessary action;
diagnose malfunctions of emission control systems causing vehicle performance problems,
and determine necessary action;
adjust valves on engines with mechanical or hydraulic lifters;
diagnose and verify correct camshaft timing, and determine necessary action;
use vehicle dynamometer to perform emission testing, and engine performance/drivability
issues.
Course Content:
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Fuel Injection Systems
a. fuel delivery and storage
b. fuel injectors
c. pressure controls
d. fuel delivery control
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
Computer Control Systems
a. OBDI systems and controls
b. OBDII systems and controls
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:
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Lecture/demonstrations (use of multimedia)
Laboratory
Laboratory work sheets
Guest speakers
Field trips
Chabot College
Course Outline for Automotive Technology 71B, Page 3
Fall 2008
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
2. Methods of Evaluating Student Progress
a. Class participation
b. Performance in the laboratory projects
c. Laboratory work sheets
d. Home work
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
Diagnosis and Troubleshooting of Automotive Electrical, Electronic, and Computer Systems,
Third Edition, James D. Halderman, Prentice Hall, 2001
Special Student Materials:
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Safety glasses
Shop/safety clothing
SAS 10/2007, revised 31Oct07
AT 71B course outline.doc