EFC Carburetor System

• Description
• Operation
  • Notes
  • Oxygen (O2) Sensor
  • Electronic Control Module (ECM)
  • Duty Solenoid Valve
  • Vacuum (Pressure) Sensor & Solenoid Valve
  • Altitude COMPENSATOR
  • THERMOSENSOR & Engine Speed Sensor
  • Emission Controls
    • Air Injection System
    • Catalytic Converter
• Diagnosis & Testing
  • Diagnostic Tools
• Component Testing
  • Float Chamber Ventilation (FCV), Idle-Up Solenoid High Altitude COMPENSATOR (HAC), & Vacuum Line Charging (VLC) Valves
  • Diagnostic System
  • Diagnostic Procedure
  • Entering Diagnostic Mode
  • Exiting Diagnostic Modes
  • Clearing Trouble Codes
• Wiring Diagrams