Engine Controls - Self-Diagnostics Introduction - CNG, Flex-Fuel & Gasoline

• Introduction
• Self-Diagnostic System
  • Diagnostic Formats
  • Diagnostic Trouble Codes
    • Notes
    • KOEO & KOER Self-Tests
    • Continuous Memory Codes
  • Retrieving Codes
  • Reading Codes
    • Notes
    • KOEO & KOER On-Demand Self-Test Codes
    • Pass Codes
    • Continuous Memory Codes
  • Clearing Codes
    • Notes
    • PCM Reset Procedure
    • Keep Alive Random Access Memory Reset Procedure
• Powertrain Control Module Location
  • Aviator, BLACKWOOD, Explorer, F150 Pickup & Mountaineer
  • Crown Victoria, Grand Marquis, Marauder & Town Car
  • ECONOLINE
  • Escape & Ranger
  • Excursion & F250-550 Super-Duty Pickups
  • Expedition, Explorer Sport, Explorer Sport TRAC & Navigator
  • Focus & Mustang
  • LS & THUNDERBIRD
  • Sable, TAURUS & WINDSTAR
  • ZX2
• Quick Test
  • Notes
  • Visual Check
  • Vehicle Preparation & Equipment Hookup
  • KOEO On-Demand Self-Test
    • Description
    • Performing Self-Test
  • KOER On-Demand Self-Test
    • Description
    • BPP, PSP & TCS Test Procedures
    • Performing Self-Test
  • Continuous Memory Self-Test
    • Description
    • Performing Self-Test
• Additional System Functions
  • Notes
  • Parameter Identification Mode
    • Notes
    • Description
    • Accessing Generic OBD-II PIDs
    • Accessing Ford Specific PIDs
  • On-Board System Readiness Test Mode
    • Description
    • Accessing OSR Test Mode
  • Freeze Frame Data Mode
    • Description
    • Accessing Freeze Frame Data Mode PIDs
  • Diagnosing Adaptive Fuel DTCS
    • Description
    • Obtain Freeze Frame Data
    • Using LONGFT1 & LONGFT2 (Dual Bank Engines) PIDs
    • Resetting Long Term Fuel Trims
    • DTC P0171/P0174 System Too Lean Diagnostic Aids
    • DTC P0172/P0175 System Too Rich Diagnostic Aids
  • Output Test Mode
    • Notes
    • Description
    • Accessing Output Test Mode
  • Failure Mode Effects Management
  • Hardware Limited Operational Strategy
  • Engine Rpm/Vehicle Speed Limiter
• Diagnostic Monitors
  • Description
  • Catalyst Efficiency Monitor
    • Description
    • Switch Ratio Method (1996-Later)
    • Index Ratio Method (Some 2001-Later)
    • General Catalyst Monitor Operation
  • Comprehensive Component Monitor
  • Evaporative Emission Leak Check Monitor
  • Exhaust Gas RECIRCULATION System Monitor - Differential Pressure Feedback EGR
  • Electric Exhaust Gas RECIRCULATION System Monitor
  • Fuel System Monitor
  • Heated Oxygen Sensor Monitor
    • Description
    • HO2S Testing
  • Misfire Detection Monitoring
  • Secondary Air Injection System Monitor - Electric Secondary Air Injection Pump System
  • Thermostat Monitor
• Programming Pcm
  • Powertrain Control Module Reset
    • Description
    • Resetting Keep Alive Memory (KAM)
  • Flash Electrically ERASEABLE Programmable Read Only Memory (Flash EEPROM)
    • Description
    • Programming VID Block For Replacement PCM
    • Making Changes To The VID Block
    • Making Changes To The PCM Calibration
• Fuel System Safety Precautions
  • Gasoline System
    • Notes
    • Safe Fuel Handling Practices (Gasoline, Methanol & Methanol Blends)
    • Inertia Fuel Shutoff Switch Reset Procedure
  • Natural Gas System
    • Notes
    • Safe Fuel Handling Practices (Natural Gas)
• Drive Cycles
  • Notes
  • OBD-II Drive Cycle Description
  • OBD-II Drive Cycle Vehicle Preparation
  • OBD-II Drive Cycle
• Summary
• Diagnostic Trouble Code Definitions
• Pcm Connector Identification
  • Notes
  • Pcm Connector End View & Pcm Connector Circuit Functions (Aviator)
  • Pcm Connector End View & Pcm Connector Circuit Functions (BLACKWOOD)
  • Pcm Connector End View & Pcm Connector Circuit Functions (Crown Victoria, Grand Marquis & Marauder)
  • Pcm Connector End View & Pcm Connector Circuit Functions (E-Series)
  • Pcm Connector End View & Pcm Connector Circuit Functions (Escape)
  • Pcm Connector End View & Pcm Connector Circuit Functions (Excursion & F250-F550 Super Duty)
  • Pcm Connector End View & Pcm Connector Circuit Functions (Expedition & Navigator)
  • Pcm Connector End View & Pcm Connector Circuit Functions (Explorer & Mountaineer)
  • Pcm Connector End View & Pcm Connector Circuit Functions (Explorer Sport & Sport TRAC)
  • Pcm Connector End View & Pcm Connector Circuit Functions (F150)
  • Pcm Connector End View & Pcm Connector Circuit Functions (Focus 2.0L)
  • Pcm Connector End View & Pcm Connector Circuit Functions (Focus 2.3L)
  • Pcm Connector End View & Pcm Connector Circuit Functions (LS)
  • Pcm Connector End View & Pcm Connector Circuit Functions (Mustang)
  • Pcm Connector End View & Pcm Connector Circuit Functions (Ranger)
  • Pcm Connector End View & Pcm Connector Circuit Functions (Sable & TAURUS)
  • Pcm Connector End View & Pcm Connector Circuit Functions (THUNDERBIRD)
  • Pcm Connector End View & Pcm Connector Circuit Functions (Town Car)
  • Pcm Connector End View & Pcm Connector Circuit Functions (ZX2)
• System Tests
  • Notes
  • How To Use System Tests
• Evaporative Emissions Diagnostic Trouble Code Definitions
• System Tests (Evaporative Emission)
  • Notes
  • Canister Vent Solenoid Closing Procedure
  • Evaporative Emissions System Leak Test
  • Evaporative Emission Repair Verification Drive Cycle
  • Test A: DTC P0442, P0456 Or P0457: Small Leak Detected In EVAP System
    • Notes
    • Diagnostic Aids
    • F150 & Focus
    • Crown Victoria, Grand Marquis, Marauder, Mustang, Town Car & ZX2
    • LS & Thunderbird
    • Ranger
    • Sable & Taurus
    • All Others
  • Test B: DTC P0455: Major Leak Or No Flow Detected In EVAP System Or DTC P1443: Very Small Or No Purge Flow Detected In EVAP System
    • Notes
    • Diagnostic Aids
    • Focus
    • F150
    • LS & Thunderbird
    • Sable & Taurus
    • All Others
  • Test C: DTC P1450: Excessive Vacuum Detected In Fuel Tank
    • Notes
    • Diagnostic Aids
    • Focus
    • F150
    • Sable & Taurus
    • All Others
• Wiring Diagrams
  • Cars
    • Crown Victoria
    • Focus
    • Grand Marquis
    • LS
    • Marauder
    • Mustang
    • Sable
    • Taurus
    • Thunderbird
    • Town Car
    • ZX2
  • Trucks
    • Aviator
    • Cab & Chassis F350 Super Duty
    • Cutaway E350 Super Duty
    • Econoline E150
    • Econoline E250
    • Econoline E350 Super Duty
    • Escape
    • Expedition
    • Explorer
    • Explorer Sport
    • Explorer Sport Trac
    • Excursion
    • E450 Super Duty
    • E550 Super Duty
    • F450 Super Duty
    • F550 Super Duty
    • Mountaineer
    • Navigator
    • Pickup F150
    • Pickup F250 Super Duty
    • Pickup F350 Super Duty
    • Ranger
    • RV Cutaway E350 Super Duty
    • Windstar