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.
2000 Honda S2000FACTORY OEM SERVICE PROCEDURE
Fuel And Emissions Systems
- Special Tools
- General Troubleshooting Information
- Intermittent Failures
- Opens and Shorts
- How to Use the Honda Diagnostic System (HDS) or a Scan Tool
- How to Reset the ECM
- Reset the ECM with an OBD II scan tool or the HDS
- Reset the ECM by removing the fuse
- How to End a Troubleshooting Session (required after any troubleshooting)
- How to Troubleshoot Circuits at the ECM
- How to Substitute the ECM for Testing Purposes
- DTC Troubleshooting Index
- Symptom Troubleshooting Index
- System Description
- Electronic Control System
- ECM Data
- ECM Inputs and Outputs at Connector A (32P)
- ECM Inputs and Outputs at Connector B (25P)
- ECM Inputs and Outputs at Connector C (31P)
- Vacuum Hose Routing
- Vacuum Distribution
- PGM-FI System
- Notes
- Alternator Control
- A/C Switch
- A/C Compressor Clutch Relay
- Barometric Pressure (BARO) Sensor
- Crankshaft Position (CKP) Sensor
- Engine Coolant Temperature (ECT) Sensor
- Intake Air Temperature (IAT) Sensor
- Injector Timing and Duration
- Ignition Timing Control
- Knock Sensor
- Manifold Absolute Pressure (MAP) Sensor
- Primary and Secondary Heated Oxygen Sensors (HO2S)
- Starting Control
- Throttle Position (TP) Sensor
- Camshaft Position (CMP Sensor (Top Dead Center (TDC) Sensors)
- Idle Control System
- Fuel Supply System
- Intake Air System
- Catalytic Converter System
- Positive Crankcase Ventilation (PCV) System
- Evaporative Emission (EVAP) Control System
- Idle Control System Diagram
- Intake Air System Diagram
- Pulsed Secondary Air Injection
- Evaporative Emission (EVAP) Control Diagram
- How to Set Readiness Codes
- Malfunction Indicator Lamp (MIL) Indication (In relation to Readiness Codes)
- Catalytic Converter Monitor and Readiness Code
- Enable Criteria
- When using the HDS
- When using a scan tool
- Evaporative Emission (EVAP) Control System Monitor and Readiness Code
- HO2S Monitor and Readiness Code
- HO2S Heater Monitor Readiness Code
- Secondary Air Injection (AIR) System Monitor and Readiness Code
- Misfire Monitor and Readiness Code
- Fuel System Monitor and Readiness Code
- Comprehensive Component Monitor and Readiness Code
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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