Engine Controls - Theory & Operation

• Introduction
• Air Induction System
  • Non-Turbocharged Engines
  • Turbocharged Engines
    • Notes
    • Wastegate Control Solenoid Valve
• Computerized Engine Controls
  • Notes
  • Engine Control Module (ECM)
  • Input Devices
    • Notes
    • Air Conditioner Switch
    • Airflow Sensor
    • Airflow Sensor Assembly
    • Atmospheric (Barometric) Pressure Sensor
    • Camshaft Position Sensor
    • Closed Throttle Position Switch
    • Coolant Temperature Sensor
    • Crankshaft Position Sensor Assembly
    • Electrical Load Switch
    • Engine Speed (Tach Signal)
    • Heated Oxygen Sensor (HO2S)
    • Ignition Timing Adjustment Terminal
    • Inhibitor Switch (Automatic Transmission)
    • Intake Air Temperature Sensor
    • Knock Sensor (Turbo)
    • Motor Position Sensor (MPS)
    • Oxygen (O2) Sensor
    • Power Steering Oil Pressure Switch
    • TDC Sensor
    • Throttle Position Sensor (TPS)
    • Vehicle Speed Sensor
  • Output Signals
    • Notes
    • Accelerator Pedal Position Sensor (APPS)
    • Data Link Connector
    • EGR Control Solenoid Valve
    • Fuel Injectors
    • Fuel Pressure Control Solenoid Valve (Turbo)
    • Fuel Pressure Regulator
    • Idle Speed Control Servo
    • Malfunction Indicator Light
    • Power Transistor(s) & Ignition Coils
    • Purge Control Solenoid Valve
    • Variable Induction Control (VIC) Motor Sensor
    • Wastegate Control Solenoid Valve
• Fuel System
  • Fuel Delivery
    • Notes
    • Fuel Pump
    • Fuel Pressure Control Solenoid Valve (Turbo)
    • Fuel Pressure Regulator
  • Fuel Control
    • Fuel Injectors
  • Idle Speed
    • Air Conditioner (A/C) Relay
    • Idle Air Control (IAC) Motor
    • Fast Idle Air Control Valve
• Ignition Systems
  • Direct Ignition System (DOHC Engines)
    • Notes
    • Power Transistors & Ignition Coils
  • Electronic Ignition System (SOHC Engines)
    • Notes
    • Power Transistor & Ignition Coil
  • Ignition Timing Control System
• Emission Systems
  • Exhaust Gas RECIRCULATION (EGR) Control
    • Federal (Non-Turbo)
    • California & Turbo
    • EGR Control Solenoid Valve
    • Thermovalve
  • Evaporative Control
    • Notes
    • Purge Control Solenoid Valve
  • High Altitude Control (HAC)
  • Positive Crankcase Ventilation (PCV) Valve
• Miscellaneous Controls
  • Notes
  • Engine Controls - Theory & Operation
    • Accelerator Pedal Position Sensor (APPS)
    • Variable Induction Control (VIC) Motor Sensor
• Self-Diagnostic System
  • Notes
  • Engine Controls - Theory & Operation
    • Malfunction Indicator Light (MIL)