Fuel System & Emissions System

• Special Tools
• General Troubleshooting Information
  • Intermittent Failures
  • Opens and Shorts
  • How to Use the HDS (Honda Diagnostic System)
    • If the MIL (Malfunction Indicator Lamp) has come on
    • If the MIL did not stay on
    • If you can't duplicate the DTC
  • HDS Clear Command
  • Scan Tool Clear Command
  • DTC Clear
  • PCM Reset
  • CKP Pattern Clear/CKP Pattern Learn
  • How To End A Troubleshooting Session (Required After Any Troubleshooting)
  • How To Troubleshoot Circuits At The PCM Connectors
  • PCM Updating and Substitution for Testing
    • Special Tools Required
  • How to Update the PCM
  • How to Substitute the PCM
  • OBD Status
• DTC Troubleshooting Index
• Symptom Troubleshooting Index
• System Description
  • Electronic Control System
    • Notes
    • Self-diagnosis
    • Fail-safe Function
    • MIL Bulb Check and Readiness Code Condition
    • Self Shut Down (SSD) Mode
    • PCM Electrical Connections
  • Vacuum Hose Routing
  • Vacuum Distribution
  • PCM Inputs and Outputs at Connector A (square) (44P)
  • PCM Inputs and Outputs at Connector B (triangle) (44P)
  • PCM Inputs and Outputs at Connector C (circle) (44P)
  • PGM-FI System
    • Notes
    • Alternator Control
    • Air Conditioning (A/C) Compressor Clutch Relay
    • Air Fuel Ratio (A/F) Sensor
    • Barometric Pressure (BARO) Sensor
    • Camshaft Position (CMP) Sensor
    • Crankshaft Position (CKP) Sensor
    • Engine Coolant Temperature (ECT) Sensor 1/Engine Coolant Temperature (ECT) Sensor 2
    • Ignition Timing Control
    • Injector Timing and Duration
    • Intake Air Temperature (IAT) Sensor
    • Knock Sensor
    • Malfunction Indicator Lamp (MIL) Indication (In relation to Readiness Codes)
    • Manifold Absolute Pressure (MAP) Sensor
    • Output Shaft (Countershaft) Speed Sensor
    • Secondary Heated Oxygen Sensor (Secondary HO2S)
  • Electronic Throttle Control System
    • Notes
    • Accelerator Pedal Position (APP) Sensor
    • Throttle Body
  • Idle Control System
    • Notes
    • Brake Pedal Position Switch
    • Power Steering Pressure (PSP) Switch
  • Fuel Supply System
    • Fuel Cut-off Control
    • Fuel Pump Control
    • PGM-FI Main Relay 1 (Fl MAIN) and 2 (FUEL PUMP)
  • Catalytic Converter System
    • Warm Up Three Way Catalytic Converter (WU-TWC) and Three Way Catalytic Converter (TWC)
      • Notes
      • WU-TWC
      • TWC
  • Exhaust Gas Recirculation (EGR) System
    • Notes
    • EGR Valve
  • Positive Crankcase Ventilation (PCV) System
  • Evaporative Emission (EVAP) Control System
    • Notes
    • EVAP Canister
    • EVAP Canister Purge Valve
    • Fuel Tank Pressure (FTP) Sensor
    • EVAP Canister Vent Shut Valve
  • Fuel Cap Warning Message (with Multi-information display)
    • Notes
    • First drive cycle
  • To Make The Message Go Off (with the HDS)
    • Procedure
  • To Make The Message Go Off (without the HDS)
    • Procedure
    • Second drive cycle
    • Third drive cycle
  • Fuel Cap Warning Message (without Multi-information display)
    • Notes
    • First drive cycle
  • Electronic Throttle Control System Diagram
  • Intake Manifold Tuning (IMT) Valve System (J35A7 Engine)
  • Variable Cylinder Management (VCM) System (J35A7 Engine)
  • Operation
    • During 6 Cylinder Mode (intake valve side)
    • During 6 Cylinder Mode (exhaust valve side)
    • During Cylinder Pause Mode (intake valve side)
    • During Cylinder Pause Mode (exhaust valve side)
  • Active Control Engine Mount (ACM) System (J35A7 Engine)
    • Notes
    • Conventional Liquid Engine Mount
    • Active Control Engine Mount
  • Exhaust Gas Recirculation (EGR) System Diagram
  • Evaporative Emission (EVAP) Control Diagram
    • Notes
    • PCM Circuit Diagram
• How to Set Readiness Codes
  • Malfunction Indicator Lamp (MIL) Indication (In relation to Readiness Codes)
  • Catalytic Converter Monitor and Readiness Code
    • Notes
    • Enable Criteria
    • Procedure
  • Evaporative Emission (EVAP) Control System Monitor and Readiness Code
    • Notes
    • Enable Criteria
    • Procedure
  • Air Fuel Ratio (A/F) Sensor Monitor and Readiness Code
    • Notes
    • Enable Criteria
    • Procedure
  • Air Fuel Ratio (A/F) Sensor Heater Monitor Readiness Code
    • Notes
    • Procedure
  • Misfire Monitor and Readiness Code
  • Fuel System Monitor and Readiness Code
  • Comprehensive Component Monitor and Readiness Code
  • EGR Monitor and Readiness Code
    • Notes
    • Enable Criteria
    • Procedure