Fuel And Emissions - Service, Testing And Troubleshooting

• Fuel Pressure Troubleshooting
  • Fuel Pressure Relieving
    • Procedure
  • Fuel Tank Draining
    • Drain
• DTC Troubleshooting
  • Fuel Pump Circuit Troubleshooting
• DTC Troubleshooting Index
  • Fuel and Emissions Systems DTC Troubleshooting Index (2019 2020)
  • Fuel and Emissions Systems DTC Troubleshooting Index (2022 2023 2024 2025)
• Description & Operation
  • Fuel Supply System Description - Fuel Pump
  • Fuel Supply System Description - High Pressure Fuel Pump
  • Fuel Supply System Description - Returnless Fuel System
  • Improvement Control in Practical Use Fuel Consumption System Description - Effective Control
  • PGM-FI System Description - A/F Sensor/HO2S Feedback Air/Fuel Ratio Control
  • PGM-FI System Description - Fuel Cut-off Control
• Inspection
  • Fuel Line Inspection
    • Inspection
• Symptom Troubleshooting
  • Fuel and Emissions Systems Symptom Troubleshooting - Engine stalls (2022 2023 2024 2025)
  • Fuel and Emissions Systems Symptom Troubleshooting - Engine Stalls Diagnostic Interview
  • Fuel and Emissions Systems Symptom Troubleshooting - Engine Stalls (2019 2020 2021)
  • Fuel and Emissions Systems Symptom Troubleshooting - Engine Will Not Start, Engine Starts But Stalls Immediately, Or Engine Is Hard To Start (2019 2020 2021)
  • Fuel and Emissions Systems Symptom Troubleshooting - Engine Will Not Start, Engine Starts But Stalls Immediately, Or Engine Is Hard To Start (2022 2023 2024 2025)
  • Fuel and Emissions Systems Symptom Troubleshooting - Hard To Start Engine Diagnostic Interview
• Circuit Diagram
  • Fuel And Emissions Systems Circuit Diagram (2020 2021)
  • Fuel and Emissions Systems Circuit Diagram (2022 2023 2024 2025)
  • Fuel and Emissions Systems Circuit Diagram (2019)
• General Information
  • Fuel Line/Quick-Connect Fitting Precautions
• Test
  • Fuel Gauge Sending Unit Test
    • Test
  • Fuel Pressure Test
    • Notes
    • Test
• How To Information
  • How To Troubleshoot The Fuel And Emissions Systems
    • Intermittent Failures
    • Service Information
    • Opens and Shorts
    • CHECK SYSTEM Display Indication (CHECK STARTER SYSTEM)
    • CHECK SYSTEM Display Indication (CHECK AUTO START and STOP SYSTEM)
    • How to Use the HDS (Honda Diagnostic System)
    • If the MIL did not stay on
    • If you cannot duplicate the DTC
    • On-Board Snapshot
    • HDS Clear Command
    • Scan Tool Clear Command
    • DTC Clear
    • How to End a Troubleshooting Session (required after any troubleshooting)
    • How to Troubleshoot Circuits at the PCM Connectors
    • OBD Status
• Symptom Troubleshooting Index for Viewer
  • Fuel Overflows During Refueling (No DTCs Set)
• Symptom Troubleshooting Index
  • Fuel and Emissions Systems Symptom Troubleshooting Index
• Component Location Index
  • Fuel and Emissions Systems Component Location Index