Automotive Emissions Controls
Course # AUTO 067x3
Mon & Wed 6pm- 9pm (one semester
-- 18wks)
Module II -- Electricity (review) Unit 1-10, Week 3-8
Unit I -- Electricity
To successfully complete this module student must demonstrate knowledge
of:
1. Electron theory
2. The terms: amperes, voltage, and resistance (ohms)
3. Ability to utilize Ohms Law in problem solving
4. Series and parallel circuits
5. Electromagnetism and induction theory
6. Capacitors, resistors, diodes, and transistors
etc.
7. Circuit protection devices
8. Electrical circuit shorts, opens, and grounds
Unit II -- Wiring Diagrams
To successfully complete this module student must demonstrate knowledge
of:
1. Wire color coding as related to diagrams
2. Diagram legend symbols
3. Circuits tracing procedures
4. Component identification on vehicle as noted
in diagrams
Unit III -- Meters
To successfully complete this module student must demonstrate knowledge
of:
1. Checking and understanding circuit continuity
using an ohmmeter
2. Measuring and understanding circuit resistance
using an ohmmeter
3. Measuring and understanding circuit voltage using
a voltmeter
4. Measuring and understanding voltage drop using
a voltmeter
5. Measuring and understanding current flow using
an ammeter
6. Measuring and understanding circuit drain using
an ammeter
7. Proper digital multimeter meter mode selection
and ability to correctly read meter scale for test
Unit IV -- Vacuum Diagrams
To successfully complete this section the student must demonstrate
knowledge of:
1. Vacuum circuit tracing procedures
2. Component identification on vehicle as noted
in diagrams
3. Diagram acronyms
4. Three main vacuum courses and their characteristics
Unit V -- Smog: cause and effect
To successfully complete this section the student must demonstrate
knowledge of:
1. Combustion process in internal combustion engines
2. Formation and effects of carbon monoxide
3. Formation and effects of hydrocarbons
4. Formation and effects of oxides of nitrogen
5. Federal and state efforts to control air pollutants
from vehicles
Unit VI -- Engine Theory
To successfully complete this section the student must demonstrate
knowledge of :
1. Basic mechanical engine components
2. Four stroke theory of internal combustion engine
3. Engine vacuum
4. Camshaft timing and valve overlap
5. Engine cylinder sealing component
6. Combustion chamber design
7. Flame front travel and quenching
8. Engine coolant temperature as it affects emissions
Unit VII -- Basic Ignition Systems
To successfully complete this section the student must demonstrate
knowledge of:
1. Basic components and circuitry of primary ignition
system
2. Basic components and circuitry of secondary ignition
system
3. Theory and operation of ignition coil
4. Theory and operation of distributor
5. Operation and inspection of spark plugs
6. Theory and operation of spark timing systems
7. Theory and operation of timing light
Unit VIII -- Engine Scopes
To successfully complete this section the student must demonstrate
knowledge of:
1. Basic operation, hook up, and adjustments of
an automotive oscilloscope
2. Oscilloscope screen voltage/time scales
3. Scope patterns: superimposed, raster, and parade
4. Identification and interpretation of primary
and secondary wave form patterns
5. Analyze abnormal scope patterns
6. Ignition coil output test, and reserve
7. Review cylinder balance test
Unit IX -- Fuel Systems
To successfully complete this section the student must demonstrate
knowledge of:
1. Characteristics of fuel: general chemical make-up,
additives, octane, unleaded
2. Theory and operation of fuel supply systems
3. Theory and operation of air intake systems
4. Identification and operation of Carburetor parts
5. Theory and operation of carburetor circuits:
main metering, idle, accelerator pump, choke, power
6. Types of carburetor
7. Theory and operation of secondary circuits on
one/two stage carburetors
8. Theory, operation, and adjustment of multiple
carburetors
9. Troubleshooting, cleaning, and ,adjustment of
carburetor
Unit X -- Four Gas Analyzers
To successfully complete this section the student must demonstrate
knowledge of:
1. Components and operation of a basic four gas
analyzer
2. Hydrocarbon emissions and its relationship to
engine performance
3. Carbon monoxide emission and it relationship
to engine performance
4. Carbon dioxide emissions and its relationship
to engine performance
5. Oxygen content in engine exhaust and its relationship
engine performance
6. Relationship of four gases each other and stoichiometric
air/fuel ratio
7. Ability to troubleshoot engine performance problems
using four gas analyzer
8. Idle mixture adjustments procedure
9. Idle speed adjustments
Module III -- Operation and Identification of Vehicle Emission Controls,
Weeks 9-11
To successfully complete this section the student must demonstrate
knowledge of:
1. Ability to identify a missing, modified, disconnected
or defective emission control system
2. Ability to perform a visual inspection of emission
control system for completeness and approved parts
3. Ability to perform a functional test of the exhaust
gas recalculation system, ignition, timing,
check engine light
4. Theory, operation, inspection, and testing of
the following emission control system
a. Positive crankcase ventilation
b. Evaporative control
c. Air induction pre-heat
d. Exhaust gas recalculation
e. Air injection
f. Catalytic convertor
g. Spark controls
h. Thermal reactors
i. Retrofit devices
5. Testing of dual and alternate fuel vehicles following
Bureau procedures
Module IV -- Student Workbook Week 12
1. Vehicle Identification
2. System Application
3. Gray Market Vehicles
4. Engine Changes
5. Laboratory Assignments
Module V -- Tas Operation and Testing Procedures Weeks13-14
1. Tas basic
2. Tas Maintenance and lockouts
3. Vehicle Inspection Procedures
4. Laboratory