Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSHONDA2009ODYSSEY EX-LREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISFUEL AND EMISSIONS SYSTEMS
2009 Honda Odyssey EX-L
Fuel And Emissions Systems
2009 Honda Odyssey EX-LSECTION Fuel And Emissions Systems
- Special Tools
- General Troubleshooting Information
- Intermittent Failures
- Service Information
- Opens and Shorts
- How to Use the HDS (Honda Diagnostic System)
- HDS Clear Command
- Scan Tool Clear Command
- DTC Clear
- PCM Reset
- CKP Pattern Clear/CKP Pattern Learn
- Learn Procedure (without the HDS)
- How to End a Troubleshooting Session (required after any troubleshooting)
- How to Troubleshoot Circuits at the PCM Connectors
- Substituting the PCM
- OBD Status
- DTC Troubleshooting Index
- Symptom Troubleshooting Index
- System Description
- Fuel and Emissions Systems Diagram
- Vacuum Hose Routing
- Electronic Control Systems ('07 model)
- PCM Inputs and Outputs at PCM Connector A (β‘) (49P) ('07 model)
- PCM Inputs and Outputs at PCM Connector B (Ξ) (49P) ('07 model)
- PCM Inputs and Outputs at PCM Connector C (β¦) (49P) ('07 model)
- PCM Electrical Connections ('07 model)
- PCM Circuit Diagram ('07 model)
- Electronic Control Systems ('08-10 models)
- PCM Inputs and Outputs at PCM Connector A (β‘) (49P) ('08-10 models)
- PCM Inputs and Outputs at PCM Connector B (Ξ) (49P) ('08-10 models)
- PCM Inputs and Outputs at PCM Connector C (β¦) (49P) ('08-10 models)
- PCM Electrical Connections ('08-10 models)
- PCM Circuit Diagram ('08-10 models)
- 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 and 2
- Ignition Timing Control
- Injector Timing and Duration
- Intake Air Temperature (IAT) Sensor (J35A6 engine, J35A7 engine ('07 model))
- Knock Sensor
- Malfunction Indicator Lamp (MIL) Indication (In relation to Readiness Codes)
- Manifold Absolute Pressure (MAP) Sensor
- Mass Air Flow (MAF) Sensor (J35A6 engine, J35A7 engine ('07 model))
- Mass Air Flow (MAF) Sensor/Intake Air Temperature (IAT) Sensor (J35A7 engine ('08-10 models))
- Output Shaft (Countershaft) Speed Sensor
- Secondary Heated Oxygen Sensor (Secondary HO2S)
- Electronic Throttle Control System
- Electronic Throttle Control System Diagram
- Variable Cylinder Management (VCM) System (J35A7 Engine ('07 model))
- VCM System Operation (J35A7 Engine ('07 model))
- Variable Cylinder Management (VCM) System (J35A7 engine ('08-10 models))
- VCM System Operation (J35A7 engine ('08-10 models))
- Idle Control System
- Fuel Supply System
- Intake Air system
- Catalytic Converter System
- Exhaust Gas Recirculation (EGR) System
- Exhaust Gas Recirculation (EGR) System Diagram (J35A6 engine, J35A7 engine ('07 model))
- Exhaust Gas Recirculation (EGR) System Diagram (J35A7 engine ('08-10 models))
- Positive Crankcase Ventilation (PCV) System
- Evaporative Emission (EVAP) Control System
- Evaporative Emission (EVAP) Control Diagram
- Fuel Cap Warning Message
- How to Set Readiness Codes
- Malfunction Indicator Lamp (MIL) Indication (In relation to Readiness Codes)
- Catalytic Converter Monitor and Readiness Code
- Evaporative Emission (EVAP) Control System Monitor and Readiness Code
- Air Fuel Ratio (A/F) Sensor 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
- EGR Monitor and Readiness Code
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.