Engine Controls - Theory & Operation

• Introduction
• Air Induction System
  • Fuel Injection (TBI)
• Computerized Engine Controls
  • Notes
  • Electronic Control Module (ECM)
  • Input Devices
    • Engine Coolant Temperature (ECT) Sensor
    • Distributor Reference Signal
    • Exhaust Gas Oxygen (O2) Sensor
    • Manifold Absolute Pressure (MAP) Sensor
    • Park/Neutral (P/N) Switch
    • Throttle Position Sensor (TPS)
    • Vehicle Speed Sensor (VSS)
  • Output Signals
    • Notes
    • A/C Compressor Clutch
    • Engine Cooling Fan
    • Evaporative Emission Control System
    • Fuel Injector Solenoid
    • Fuel Pressure Regulator
    • Fuel Pump
    • Fuel Pump Relay
    • High Energy Ignition
    • Electronic Spark Timing
    • Idle Air Control Valve
    • Torque Converter Clutch Solenoid
    • Transmission Shift Light
• Fuel System
  • Fuel Delivery
    • Fuel Pressure Regulator
    • Fuel Pump
    • Fuel Pump Relay
  • Fuel Control
    • Fuel Injector Solenoid
  • Idle Speed
    • Idle Air Control (IAC) Valve
    • A/C Compressor Clutch (ECM-Controlled)
• Ignition System
  • Distributor Ignition (Di)
  • Electronic Spark Timing (Est) Control
• Emission Systems
  • Exhaust Gas RECIRCULATION (EGR) System
  • Evaporative Emission (EVAP) System
    • Notes
    • Purge Valve
  • Intake Air Control System
  • Crankcase Ventilation System
• Self-Diagnostic System
  • Check Engine Light
  • Diagnostic Link Connector (DLC)
• Miscellaneous Controls
  • Notes
  • Engine Cooling Fan
    • Model With A/Cs
    • Models Without A/C
  • Torque Converter Clutch (TCC) Solenoid
  • Transmission Shift Light
    • Manual Transmission Vehicles