Engine Controls - Theory & Operation

• Introduction
• Computerized Engine Controls
  • Engine Controls - Theory & Operation
    • Powertrain Control Module (PCM)
    • Fuel Pump Driver Module (FPDM)
  • Input Devices
    • Notes
    • A/C Cycling Switch (ACCS)
    • A/C Pressure Sensor
    • A/C High Pressure Switch
    • Brake Pedal Position (BPP) Switch
    • Camshaft Position (CMP) Sensor
    • Clutch Pedal Position (CPP) Switch
    • Coolant Temperature Sensor
    • Crankshaft Position (CKP) Sensor
    • Cylinder Head Temperature (CHT) Sensor
    • Differential Pressure Feedback EGR (DPFE) Sensor
    • Engine Coolant Temperature (ECT) Sensor
    • Engine Fuel Temperature (EFT) Sensor
    • Fuel Pump Monitor (Models Without Fuel Pump Driver Module)
    • Fuel Pump Monitor (Models With Fuel Pump Driver Module)
    • Fuel Rail Pressure (FRP) Sensor
    • Heated Oxygen Sensor (HO2S)
    • Intake Air Temperature (IAT) Sensor
    • Mass Airflow (MAF) Sensor
    • Octane Adjust Shorting Bar
    • Park/Neutral Position (PNP) Switch
    • Power Steering Pressure (PSP) Sensor
    • Power Steering Pressure (PSP) Switch
    • Power Take-Off (PTO) Switch
    • Throttle Position (TP) Sensor
    • Transmission Control Switch (TCS)
    • Transmission Fluid Temperature (TFT) Sensor
    • Vehicle Speed Sensor (VSS)
  • Output Signals
    • Notes
    • Canister Purge (CANP) Solenoid Valve
    • EGR Vacuum Regulator Solenoid
    • EGR Valve
    • Fuel Injectors
    • Fuel Pump (Gasoline Models Only)
    • Idle Air Control (IAC) Valve
    • Malfunction Indicator Light (MIL)
• Fuel System (Gasoline)
  • Fuel Delivery
    • Notes
    • Fuel Pump (Returnable Fuel System)
    • Fuel Pressure Regulator (Returnable Fuel System)
    • Inertia Fuel Shutoff (IFS) Switch
  • Fuel Control
    • Fuel Injectors
  • Idle Speed
    • Idle Air Control (IAC) Valve Assembly
• Ignition System
  • Electronic Ignition (EI) System
    • Notes
    • Models Equipped With Coil Pack(s)
    • Models Equipped With Coil On Plugs (COPs)
• Emission Systems
  • Secondary Air Injection System
    • Notes
    • Electronic Secondary Air Injection (AIR) System
    • Mechanical Air Injection System
  • EGR System
    • Notes
    • System Description
    • EGR Valve
    • Differential Pressure Feedback Electronic (DPFE) Sensor
    • EGR Vacuum Regulator Solenoid
    • Orifice Tube Assembly
  • Fuel Evaporative System
    • System Description
    • EVAP Purge Flow System
    • Vapor Management Flow System
    • EVAP Running Loss System
    • On-Board Refueling Vapor Recovery EVAP System
  • Positive Crankcase Ventilation (PCV)
• Self-Diagnostic System
  • Notes
  • Malfunction Indicator Light (Mil)