Title: Identify emission control system components and configurations.
Course: Automotive Technology II (MLR 3-Year Program) (20104-IIA) > Section: ENGINE PERFORMANCE: Emissions Control Systems

Identification should include

- positive crankcase ventilation system
  - positive crankcase ventilation (PCV) valve
  - electric PCV valve
- evaporative emission control system
  - fuel tank cap
  - charcoal canister
  - purge line
  - purge valve
  - liquid-vapor separator
  - rollover valve
- exhaust gas recirculation (EGR) system
  - EGR valve
  - electronic EGR valve
  - electronic vacuum EGR valve.

Process/Skill Questions:

- What is the purpose of emissions control systems?
- What kind of emission control system do most late model vehicles use? Why?
- Where is the charcoal canister located?
- What are the penalties for rendering emissions control components inoperative?
- What federal agency oversees emissions standards?