Engine Controls - Description & Operation (Except Diesel & Hybrid)

• Vehicle Emission Control Information (VECI)
  • VECI Decal
  • VECI Decal Location
  • Engine/Evaporative Emission (EVAP) System Information
• Vehicle Certification Label
  • Base Engine Calibration Information
    • Notes
    • Engine Calibration Information (Car)
    • Engine Calibration Information (Truck)
  • Vehicle Certification Label Location
  • Engine Calibration Code
• Vehicle Emission Control Information (VECI) Acronym Definitions
• Engine Control Components
  • Notes
  • Accelerator Pedal Position (APP) Sensor
  • Air Conditioning (A/C) Clutch Relay (A/CCR)
  • Air Conditioning (A/C) Cycling Switch
  • Air Conditioning Evaporator Temperature (ACET) Sensor
  • Air Conditioning (A/C) High Pressure Switch
  • Air Conditioning Pressure (ACP) Sensor
  • Brake Pedal Position (BPP) Switch
  • Brake Pedal Switch (BPS)/Brake Deactivator Switch
  • Camshaft Position (CMP) Sensor
  • Canister Vent (CV) Solenoid
  • Check Fuel Cap Indicator
  • Clutch Pedal Position (CPP) Switch
  • Coil On Plug (COP)
  • Coil Pack
  • Cooling Fan Clutch
  • Crankshaft Position (CKP) Sensor
  • Cylinder Head Temperature (CHT) Sensor
  • Differential Pressure Feedback Exhaust Gas Recirculation (EGR) (DPFE) Sensor
  • Differential Pressure Feedback Exhaust Gas Recirculation (EGR) (DPFE) Sensor - Tube Mounted
  • Electric Exhaust Gas Recirculation (EEGR) Valve
  • Electronic Throttle Actuator Control (TAC)
  • Electronic Throttle Body (ETB) Position Sensor
  • Engine Coolant Temperature (ECT) Sensor
  • Engine Oil Temperature (EOT) Sensor
  • Evaporative Emission (EVAP) Canister Purge Valve
  • Exhaust Gas Recirculation (EGR) Orifice Tube Assembly
  • Exhaust Gas Recirculation (EGR) System Module (ESM)
  • Exhaust Gas Recirculation (EGR) Vacuum Regulator (EVR) Solenoid
  • Exhaust Gas Recirculation (EGR) Valve
  • Fan Control
  • Fan Speed Sensor (FSS)
  • Fuel Injectors
  • Fuel Level Input (FLI)
  • Fuel Pump (FP) Module
  • Fuel Pump Module and Reservoir
  • Fuel Rail Pressure (FRP) Sensor
  • Fuel Rail Pressure Temperature (FRPT) Sensor
  • Fuel Rail Pulse Damper
  • Fuel Rail Temperature (FRT) Sensor
  • Fuel Tank Pressure (FTP) Sensor
  • Heated Oxygen Sensor (HO2S)
  • Idle Air Control (IAC) Valve
  • Inertia Fuel Shutoff (IFS) Switch
  • Intake Air Temperature (IAT) Sensor
  • Intake Manifold Tuning Valve (IMTV)
  • Knock Sensor (KS)
  • Mass Air Flow (MAF) Sensor
  • Output Shaft Speed (OSS) Sensor
  • Power Steering Pressure (PSP) Sensor
  • Power Steering Pressure (PSP) Switch
  • Power Take-Off (PTO) Switch and Circuits
  • Powertrain Control Module - Vehicle Speed Output (PCM-VSO)
  • Secondary Air Injection (AIR) Bypass Solenoid
  • Secondary AIR Diverter Valve
  • Secondary AIR Pump
  • Starter Motor Request (SMR) Circuit
  • Throttle Position (TP) Sensor
  • Transmission Control Indicator Lamp (TCIL)
  • Transmission Control Switch (TCS)
  • Vapor Management Valve (VMV)
  • Vehicle Speed Sensor (VSS)
  • Wide Open Throttle A/C Cut-Off (WAC)
• Electronic Engine Control (EEC) System
  • Overview
  • Modifications to OBD Vehicles
• Powertrain Control Hardware
  • Powertrain Control Module (PCM)
  • PCM Locations
    • Notes
    • 104-Pin PCM
    • 140-Pin PCM
    • 150-Pin PCM
    • 170-Pin PCM
    • 190-Pin PCM
  • Fuel Injector Interface Module
  • Fuel Pump Driver Module (FPDM)
  • Keep Alive Memory (KAM)
  • Hardware Limited Operation Strategy (HLOS)
  • Integrated Electronic Ignition System
  • Power and Ground Signals
    • Electronic Throttle Control Reference Voltage (ETCREF)
    • Electronic Throttle Control Return (ETCRTN)
    • Gold Plated Pins
    • Keep Alive Power (KAPWR)
    • Mass Air Flow (MAF) Return
    • Power Ground (PWR GND)
    • Signal Return (SIG RTN)
    • Vehicle Buffered Power (VBPWR)
    • Vehicle Power (VPWR)
    • Vehicle Reference Voltage (VREF)
• Powertrain Control Software
  • Computer Controlled Shutdown
  • Engine RPM/Vehicle Speed Limiter
  • Fail-Safe Cooling Strategy
  • Failure Mode Effects Management
  • Flash Electrically Erasable Programmable Read Only Memory (EEPROM)
  • Fuel Trim
    • Short Term Fuel Trim
    • Long Term Fuel Trim
  • High Speed Controller Area Network (CAN)
  • Idle Air Trim
  • Idle Speed Control Closed Throttle Determination - Applications Without Electronic Throttle Control
  • Multiplexing
  • Multiplexing Implementation
  • Standard Corporate Protocol (SCP)
• Malfunction Indicator Lamp (Mil)
• Catalyst And Exhaust Systems
  • Overview
  • Catalytic Converter
  • Light Off Catalyst
  • Three-Way Catalyst (TWC) Conversion Efficiency
  • Exhaust System
  • Underbody Catalyst
  • Three-Way Catalytic (TWC) Converter
  • Exhaust Manifold Runners
  • Exhaust Pipes
  • Heated Oxygen Sensors (HO2S)
  • Muffler
• Dual-Injection Fuel Delivery System
  • Overview
  • Fuel Select Switch (FSSW) Circuit
  • Fuel Rails
  • Fuel Injectors
  • Fuel Injector Interface Module
• Evaporative Emission (EVAP) Systems
  • Overview
  • Enhanced Evaporative Emission (EVAP) System
• Exhaust Gas RECIRCULATION (EGR) Systems
  • Overview
  • Differential Pressure Feedback Exhaust Gas Recirculation (EGR) (DPFE) System
  • Electric Exhaust Gas Recirculation (EEGR) System
    • Highlights of the EEGR System
    • Overview
  • Exhaust Gas Recirculation (EGR) System Module (ESM)
    • Overview
• Fuel Systems
  • Overview
  • Electronic Returnless Fuel System (ERFS)
  • Fuel Pump Control - ERFS
  • Fuel Pump Monitor (FPM) - ERFS
  • Mechanical Returnless Fuel System (MRFS)
  • Fuel Pump Control - MRFS
  • Fuel Pump Monitor (FPM) - MRFS
  • Fuel Filters
  • Pressure Test Point
• Ignition Systems
  • Overview
  • Integrated Electronic Ignition System
  • Engine Crank/Engine Running
  • CMP FMEM
• Intake Air Systems
  • Overview
  • Throttle Body System Overview
    • Notes
    • Throttle Body System Hardware
    • Throttle Body Housing
    • Features of the Throttle Body Assembly include:
  • Overview of the Intake Manifold Runner Control (IMRC) and Intake Manifold Tuning Valve (IMTV) Systems
  • Intake Manifold Runner Control (IMRC) Electric Actuated System
  • Intake Manifold Runner Control (IMRC) Vacuum Actuated System
  • Intake Manifold Tuning Valve (IMTV) System
• Positive Crankcase Ventilation (PCV) System
  • Overview
  • PCV Types
    • Heated Tubes
    • PCV Valves
  • Hardware
• Powertrain Control Module (Pcm) Controlled Charging System
  • Overview
• Secondary Air Injection (Air) System
  • Overview
  • Secondary AIR System
• Supercharger And INTERCOOLER Systems
  • Supercharger Bypass (SCB) System
  • Supercharger Assembly
  • Supercharger Bypass (SCB) Solenoid
  • Vacuum Reservoir Assembly
  • Intercooler System
• Torque Based Electronic Throttle Control (Etc)
  • Overview
  • Electronic Throttle Body (ETB)
  • Accelerator Pedal Position (APP) Sensors
  • Electronic Throttle Control (ETC) System Strategy
  • Accelerator and Throttle Position (TP) Sensor Inputs
  • Throttle Plate Position Controller (TPPC) Outputs
• Variable Camshaft Timing (VCT) System
  • Overview
  • Variable Camshaft Timing (VCT) System
• On-Board Diagnostics (OBD) Monitors
  • OBD-I and OBD-II Overview
• Catalyst Efficiency Monitor
  • Notes
  • General Catalyst Monitor Operation
• Cold Start Emission Reduction Monitor
  • Overview
  • Low Idle Airflow Test
    • Notes
    • Cold start emission reduction low airflow test operation:
  • Spark Timing Monitor
    • Notes
    • Cold start emission reduction typical spark timing test entry conditions:
    • Cold start emission reduction typical spark timing test malfunction thresholds:
• Comprehensive Component Monitor (CCM)
• Electric Exhaust Gas RECIRCULATION (EEGR) System Monitor
• Evaporative Emission (EVAP) Leak Check Monitor
  • Notes
  • Engine On EVAP Leak Check Monitor
  • Engine Off Natural Vacuum (EONV) EVAP Leak Check Monitor
• Exhaust Gas RECIRCULATION (EGR) System Monitor - Delta Pressure Feedback (DPFE) EGR And EGR System Module (ESM)
• Fuel System Monitor
• Heated Oxygen Sensor (Ho2S) Monitor
• Misfire Detection Monitor
  • Notes
  • Misfire Monitor Operation
  • Low Data Rate System (LDR)
  • High Data Rate System (HDR)
  • Neural Network System
  • Generic Misfire Processing
  • Profile Correction
  • Misfire Monitor Specifications
• Positive Crankcase Ventilation (PCV) System Monitor
• Secondary Air Injection (Air) System Monitor
• Thermostat Monitor
• Variable Camshaft Timing (VCT) Monitor