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 MANUALSHONDA2009S2000 BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMADVANCED DIAGNOSTICSDTC P0300: RANDOM MISFIRE DETECTEDENABLE CONDITIONS
2009 Honda S2000 Base
Enable Conditions
2009 Honda S2000 BaseSECTION Enable Conditions
ENABLE CONDITIONS
| Condition | Minimum | Maximum | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Engine coolant temperature | 14 °F (-10 °C)(1) | - | |||||||
| 68 °F (20 °C)(2) | |||||||||
| Engine speed | 500 rpm | 8,000 rpm | |||||||
| MAP value(3) | 900 rpm | 22 kPa (6.4 in.Hg, 162 mmHg) | - | ||||||
| 2,000 rpm | 22 kPa (6.4 in.Hg, 161 mmHg) | ||||||||
| Fuel feedback | Other than during fuel cut-off operation | ||||||||
| No active DTCs | P0107, P0108, P0117, P0118, P0122, P0123, P0222, P0223, P0335, P0339, P1109, P1128, P1129, P2227, P2228, P2229 | ||||||||
| Other | Test-drive on a flat road to avoid misdetection | ||||||||
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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.