Engine Controls - Theory & Operation

• Introduction
  • Notes
  • Terminology
• Computerized Engine Controls
  • Powertrain Control Module (Pcm)
  • Input Devices
    • Notes
    • A/C Compressor Clutch Signal
    • Air Intake Temperature (AIT) Sensor
    • Barometric Pressure (BARO) Sensor
    • Brake On-Off (BOO) Switch
    • Clutch Engage Switch
    • Coolant Temperature Sensor
    • EGR Valve Position (EVP) Sensor
    • Engine Coolant Temperature (ECT) Sensor
    • Heated Oxygen Sensor (HO2S)
    • Manifold Absolute Pressure (MAP) Sensor
    • Mass Airflow (MAF) Sensor
    • Park/Neutral Position (PNP) Switch
    • Neutral Safety Switch (NSS)
    • Power Steering Pressure (PSP) Switch
    • Profile Ignition Pick-Up (PIP)
    • Self-Test Output/Self-Test Input (STO/STI) Connectors
    • Throttle Position (TP) Sensor
    • Variable Reluctance Sensor (VRS)
    • Vehicle Speed Sensor (VSS)
  • Output Signals
    • Notes
    • A/C Clutch Cycling Switch
    • Canister Purge Solenoid Valve
    • Malfunction Indicator Light (MIL)
    • Cooling Fan
    • EGR System
    • Fuel Injectors
    • Fuel Pump
    • Fuel Pressure Regulator
    • Idle Air Control (IAC) Valve
    • Self-Diagnostic
    • Self-Test Output/Self-Test Input Connectors
    • Wide Open Throttle A/C Cutoff
• Fuel Systems
  • Fuel Delivery
    • System Types
    • Low Pressure Fuel Pump
    • High Pressure Fuel Pump
    • Mechanical Selector Valve
    • Reservoirs & Filters
    • Fuel Supply Manifold Assembly
    • Fuel Pressure Regulator
    • Fuel Pump Actuation
    • Inertia Fuel Shutoff (IFS) Switch
  • Fuel Control (Gasoline Engines)
    • Notes
    • Fuel Injection
    • Throttle Body Assembly
  • Idle Speed
    • Idle Air Control (IAC) Valve
• Ignition Systems
  • Engine Controls - Theory & Operation
    • Electronic Ignition (EI) System
• Emission Systems
  • Notes
  • Engine Controls - Theory & Operation
    • Temperature Vacuum Switch (TVS)
    • Vacuum Control Valve
    • Vacuum Delay Valve
    • Vacuum Reservoir
    • Vacuum Restrictor
    • Vacuum Vent Valve
  • Air Injection System
    • Notes
    • Air By-Pass Valve
    • Air Pump
    • Air Supply Control Valve
    • Check Valves
    • Combination Air By-Pass & Air Control Valve
    • Dual Thermactor Air Control Solenoid Valve
    • Thermactor Idle Vacuum (TIV) Valve
  • EGR System
    • Notes
    • Electronic EGR Valve
    • EGR Vacuum Regulator (EVR)
    • EGR Valve Position (EVP) Sensor
  • Evaporative Emission Control
    • Notes
    • Carbon Canister
    • Canister Purge Solenoid Valve
    • Fill Control/Vent System
    • Pressure/Vacuum Relief Fuel Cap
    • Vapor Vent System
  • Positive Crankcase Ventilation (PCV)
• Self-Diagnostic System
  • Notes
  • Malfunction Indicator Light (Mil)
  • Self-Test Output/Self-Test Input (STO/STI) Connectors
• Miscellaneous Controls
  • A/C Clutch Cycling Pressure Switch (CCPS)
  • Cooling Fan
  • Wide Open Throttle A/C (WAC) Cutoff
• Wiring Diagrams