Engine Controls - Theory & Operation

• Introduction
• Computerized Engine Controls
  • Electronic Control Module
  • ECM Power Source
    • Main Relay
  • Input Devices
    • Notes
    • Camshaft Position (CMP) Sensor
    • Crankshaft Position (CKP) Sensor
    • Engine Coolant Temperature (ECT) Sensor
    • Engine Fuel Temperature (EFT) Sensor
    • Heated Oxygen Sensor (HO2S)
    • Intake Air Temperature (IAT) Sensor
    • Knock Sensor (KS)
    • Mass Airflow (MAF) Sensor
    • Throttle Position (TP) Sensor
  • Output Signals
    • Notes
    • Malfunction Indicator Light
    • Fuel Injector
    • Fuel Pump
    • Fuel Pump Relay
    • Fuel Pressure Regulator
    • Inertia Fuel Shutoff Switch
    • Idle Air Control Valve
    • Ignition Relay
    • Self-Diagnostics
• Fuel System
  • Fuel Delivery
    • Fuel Pump
    • Fuel Pump Relay
    • Fuel Pressure Regulator
    • Inertia Fuel Shutoff Switch (IFSS)
  • Fuel Control
    • Fuel Injector
  • Idle Speed
    • Idle Air Control (IAC) Valve
• Ignition System
  • Direct Ignition System (Dis)
    • Notes
    • Ignition Relay
• Evaporative Emission System (EVAP)
  • Identifying EVAP Systems
  • Pre-Advanced EVAP Control Systems
    • EVAP Control System
    • EVAP Control Canister
  • Advanced EVAP Control Systems
    • Notes
    • EVAP Control System
    • Anti-Trickle Fill Valve
    • EVAP Control Canister
    • EVAP Canister Vent Solenoid Valve
• Self-Diagnostic System
  • Notes
  • Malfunction Indicator Light (Mil)