P1337 – EVAP Vent Valve Stuck Open
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Symptoms
- Check engine light
- Possible EVAP leak code
- No major driveability issues
Causes
- Stuck valve
- Broken spring
- Connector issue
Diagnosis
- Command vent valve
- Inspect valve movement
- Check wiring
Repair
- Replace vent valve
- Repair wiring
- Secure connector