AST 2035 - Emission Control

1. Identify need for Emission Control
2. OBD II
   1. Standardized terms
   2. Code format/ freeze frame
   3. Data link connector
   4. Diagnostics/monitors
   5. Enable criteria /trip/warm-up cycles
   6. Readiness Monitors
   7. MIL operation
   8. Permeant codes
   9. Bi-directional codes
   10. Control module identification
3. Exhaust Gas Composition
4. Component/System Testing
   1. PCV
   2. EGR
   3. EVAP
   4. AIR
   5. Catalyst
   6. Variable valve timing
   7. Thermostat
5. Diagnostics/ Monitors
   1. Continuous
   2. Comprehensive
   3. Components
   4. Misfire
   5. Fuel Trim
   6. Once per trip, CAT, EGR, EVAP, AIR
6. Legal Issues
   1. Tampering
   2. Used Converters
7. Emission Warranties
8. NATEF Tasks
   1. Completion of NATEF tasks associated with course
9. Safety
   1. General shop
   2. Precautions relative to course
10. Fuel trim control
    1. Oxygen sensor operation
    2. Fuel mapping
    3. Fuel trim theory & operation

1. describe the safety precautions associated with course. .
2. describe the need for emission control.
3. describe OBD II standardization and requirements.
4. describe OBD II Diagnostics/ Monitors.
5. describe MIL operation.
6. test emission control components using a Scan Tool.
7. identify defective emission control components.
8. describe legal issues concerning emission control tampering.
9. perform NATEF tasks during emission component testing.

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