Fuel & Emission Systems

• Special Tools
• General Troubleshooting Information
  • Intermittent Failures
  • Opens and Shorts
  • How to Use the HDS or a Scan Tool
    • If the MIL (Malfunction Indicator Lamp) has come on
    • If the MIL did not stay on
    • If you can't duplicate the DTC
  • How to Reset the ECM/PCM
  • Reset the ECM/PCM with the Scan Tool or the HDS
  • Reset the ECM/PCM by removing the fuse
  • How to End a Troubleshooting Session (required after any troubleshooting)
  • How to Remove the ECM/PCM for Testing
  • How to Troubleshoot Circuits at the ECM/PCM
  • ECM/PCM Updating and Substitution for Testing
    • Notes
    • How to Update the ECM/PCM
    • How to Substitute the ECM/PCM
• DTC Troubleshooting Index
• Symptom Troubleshooting Index
• System Descriptions
  • Electronic Control System
    • Notes
    • Fail-safe Function
    • Back-up Function
    • Self-diagnosis
    • Two Driving Cycle Detection Method
  • ECM/PCM Data
    • Notes
    • ECM/PCM Electrical Connections
  • ECM/PCM Inputs and Outputs at Connector A (31P)
  • ECM/PCM Inputs and Outputs at Connector B (24P)
  • ECM/PCM Inputs and Outputs at Connector C (22P)
  • ECM/PCM Inputs and Outputs at Connector D (17P)
  • ECM/PCM Inputs and Outputs at Connector E (31P)
  • Vacuum Hose Routing
  • Vacuum Distribution
  • PGM-FI System
    • Notes
    • Air Conditioning (A/C) Compressor Clutch Relay
    • Air Fuel Ratio (A/F) Sensor
    • Barometric Pressure (BARO) Sensor
    • Camshaft Position (CMP) Sensor B (Top Dead Center (TDC) Sensor)
    • Crankshaft Position (CKP) Sensor
    • Engine Coolant Temperature (ECT) Sensor
    • 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
    • Secondary Heated Oxygen Sensor (Secondary HO2S)
    • Starting Control
    • Throttle Position (TP) Sensor
    • Vehicle Speed Sensor (VSS) (M/T)
  • VTEC/VTC
    • Notes
    • VTC system
    • VTEC system
    • System Diagram
    • Camshaft Position (CMP) Sensor A
  • Idle Control System
    • Notes
    • Brake Pedal Position Switch
    • Idle Air Control (IAC) Valve
    • Power Steering Pressure (PSP) Switch
  • Fuel Supply System
    • Fuel Cut-off Control
    • Fuel Pump Control
    • PGM-FI Main Relay 1 and 2
  • Intake Air System
    • Notes
    • Intake Air Bypass Control Thermal Valve
    • Intake Manifold Runner Control Valve Position Sensor
    • Throttle Body
  • Catalytic Converter System
    • Three Way Catalytic Converter (TWC)
  • Positive Crankcase Ventilation (PCV) System
  • Evaporative Emission (EVAP) Control System
    • Notes
    • EVAP Canister
    • EVAP Canister Purge Valve
    • Fuel Tank Pressure (FTP) Sensor
    • EVAP Two Way Valve and EVAP Bypass Solenoid Valve
  • Idle Control System Diagram
  • Intake Air System Diagram
  • Intake Manifold Runner Control (IMRC) System
  • Evaporative Emission (EVAP) Control Diagram
  • ECM/PCM Circuit Diagram
• How to Set Readiness Codes
  • Malfunction Indicator Lamp (MIL) Indication (In relation to Readiness Codes)
  • Catalytic Converter Monitor and Readiness Code
  • Enable Criteria
  • Procedure
    • Overview
    • When the HDS is used
    • When the Scan Tool is used
  • Evaporative Emission (EVAP) Control System Monitor and Readiness code
  • Air/Fuel Ratio (A/F) Sensor Heater Monitor Readiness Code
  • Misfire Monitor and Readiness Code
  • Fuel System Monitor and Readiness Code
  • Comprehensive Component Monitor and Readiness Code