Theory/Operation - CARBURETED

• Introduction
• Diagnosis & Testing
  • Control Unit
  • Input Devices
    • Coolant Temperature Switch
    • Electrical Load
    • Engine Compartment Temperature Switch
    • Engine Speed (RPM) Signals
    • Gear Position (5th Gear Switch)
    • High Altitude Compensation Switch
    • Idle Switch
    • Oxygen (O2) Sensor
    • Wide Open Throttle (WOT) Switch
  • Output Signals
• Fuel System
  • Fuel Delivery - CARBURETED
    • Fuel Pump
  • Fuel Control - CARBURETED
    • Cold Start Choke System
    • Deceleration Mixture Control System
    • Fuel-Cut System
    • High Altitude Compensation
    • Hot Idle Compensation System
    • Secondary Throttle System
    • Mixture Control Solenoid
  • Idle Speed - CARBURETED
    • Base Idle Speed
    • Cold Start Fast Idle System
    • Idle-Up System
  • Idle Speed - Fuel Injection
    • Idle Speed Control (ISC) Solenoid
• Ignition System
  • Electronic Ignition System
  • Ignition Timing Control System
    • Advance Control
• Emission Systems
  • Notes
  • Exhaust Gas RECIRCULATION (EGR)
  • Fuel Evaporation System
    • Notes
    • Bowl Ventilation Solenoid
    • Charcoal Canister
  • Positive Crankcase Ventilation (PCV)
  • Thermostatic Air Cleaner
    • Carbureted
• Self-Diagnostic System
  • "Check Engine" Light
    • Notes
    • Samurai (Except California Models)
  • Self-Diagnosis