Engine Controls - Theory & Operation

• Introduction
• Computerized Engine Controls
  • Notes
  • Electronic Control Unit
  • Input Devices
    • Airflow Sensor
    • Coolant Temperature Sensor (Digifant I - California)
    • Coolant Temperature Sensor (Digifant II - Federal)
    • Full Throttle Switch (Digifant II - Federal)
    • Hall Effect Sensor
    • Idle Switch (Digifant II - Federal)
    • Intake Air Temperature Sensor
    • Knock Sensor
    • Oxygen (O2) Sensor
    • Throttle Potentiometer (Digifant I - California)
  • Output Signals
    • Notes
    • Auxiliary Air Regulator
    • CHECK ENGINE Light (Digifant I - California)
    • Cold Start Valve
    • Fuel Injectors
    • Fuel Pump Relay
    • Ignition Coil Control
• Fuel System
  • Fuel Delivery
    • Electric Fuel Pump
    • Fuel Pump Relay
    • Fuel Pressure Regulator
  • Fuel Control
    • Notes
    • Fuel Injectors
  • Idle Speed
    • Idle Stabilization System
• Ignition System
  • Electronic Ignition System
  • Ignition Timing Control System
    • Ignition Timing Control
• Emission Systems
  • Evaporative Emissions System
  • Thermostatic Air Cleaner
• Self-Diagnostic System
  • O2 Sensor Warning Light
  • Check Engine Light
    • Digifant I (California)
• Miscellaneous Controls
  • Notes
  • Cooling Fan
    • Cooling Fan Motor
    • After-Run Thermoswitch