Fuel System & Emissions System (K20Z3 Engine)

• Special Tools
• General Troubleshooting Information
  • Intermittent Failures
  • Service Information
  • 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
  • ECM Reset
  • CKP Pattern Clear/CKP Pattern Learn
    • Clear/Learn Procedure (with the HDS)
    • Learn Procedure (without the HDS)
  • How to End a Troubleshooting Session (required after any troubleshooting)
  • How to Troubleshoot Circuits at the ECM Connectors
  • Substituting the ECM
  • OBD Status
• DTC Troubleshooting Index
• Symptom Troubleshooting Index
• System Description
  • Fuel and Emission Systems Diagram
  • Vacuum Hose Routing
  • Electronic Control Systems
    • Notes
    • Self-diagnosis
    • Fail-safe Function
    • MIL Bulb Check and Readiness Code Condition
    • Self Shut Down (SSD) Mode
  • ECM Inputs and Outputs at ECM Connector A (□) (44P)
  • ECM Inputs and Outputs at ECM Connector B (Δ) (44P)
  • ECM Inputs and Outputs at ECM Connector C (◦) (44P)
    • Notes
    • ECM Electrical Connections
    • ECM Circuit Diagram
  • 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 B
    • Crankshaft Position (CKP) Sensor
    • Engine Coolant Temperature (ECT) Sensors 1 and 2
    • Ignition Timing Control
    • Injector Timing and Duration
    • Knock Sensor
    • Malfunction Indicator Lamp (MIL) Indication (In relation to Readiness Codes)
    • Manifold Absolute Pressure (MAP) Sensor
    • Mass Air Flow (MAF) Sensor/Intake Air Temperature (IAT) Sensor
    • Output Shaft (Countershaft) Speed Sensor
    • Secondary Heated Oxygen Sensor (Secondary HO2S)
  • Electronic Throttle Control System
    • Notes
    • Accelerator Pedal Position (APP) Sensor
    • Throttle Body
  • Electronic Throttle Control System Diagram
  • VTEC/VTC
    • Notes
    • VTC System
    • VTEC System
    • VTC System Diagram
    • Camshaft Position (CMP) Sensor A
  • Idle Control System
    • Notes
    • Brake Pedal Position Switch
    • Electrical Power Steering (EPS) Signal
  • Fuel Supply System
    • Fuel Cutoff Control
    • Fuel Pump Control
    • PGM-FI Main Relays 1 and 2
  • Intake Air System
    • Notes
    • Intake Air Bypass Control Thermal Valve
  • Catalytic Converter System
    • Three Way Catalytic Converter {TWO
  • 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
  • Evaporative Emission (EVAP) Control Diagram
  • Fuel Cap Warning Message
    • Notes
    • First drive cycle
  • To make the message go off (with the HDS)
    • Procedure
  • To make the message go off (without the HDS) ('06 model)
    • Procedure
  • To make the message go off (without the HDS) ('07-11 models)
    • Procedure
• 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