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 MANUALSMAZDA20105 SPORT, 2.3 L, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 334 (SYMPTOM TROUBLESHOOTING (ENGINE CONTROL SYSTEM AJ))ENGINE CONTROL SYSTEM OPERATION INSPECTIONEVAP SYSTEM LEAK INSPECTION USING WDS OR EQUIVALENTNOTEEVAP SYSTEM MALFUNCTION JUDGMENT
2010 Mazda 5 Sport, 2.3 L, Standard
EVAP system malfunction judgment
2010 Mazda 5 Sport, 2.3 L, StandardSECTION EVAP system malfunction judgment
WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
- The PCM calculates the stored air pump load current value and send the results to the WDS as DTCs:
DTC CONDITIONS
| DTC No. | Condition |
|---|---|
| P0442 | EVAP control system leak detected (small leak) |
| P0446 | Change-over valve (EVAP system leak detection pump) stuck close |
| P0455 | EVAP control system leak detected (large leak) |
| P0456 | EVAP control system leak detected (very small leak) |
| P2401 | EVAP system leak detection pump control circuit low |
| P2402 | EVAP system leak detection pump control circuit high |
| P2404 | EVAP system leak detection pump sense circuit malfunction |
| P2405 | EVAP system leak detection pump sense circuit low input |
| P2407 | EVAP system leak detection pump sense circuit intermittent |
RENDER: 1.0x
NO RELATED
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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.