P1334 – EVAP Purge Flow Excessive
Want to confirm the real cause of this fault code?
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Symptoms
- Rough idle
- Hard starting after refuel
- Check engine light
Causes
- Stuck open purge valve
- Incorrect hose routing
- ECU control fault
Diagnosis
- Command purge valve
- Inspect hoses
- Check fuel trims
Repair
- Replace purge valve
- Correct hose routing
- Update ECU if needed