Code
P0457
Evaporative emissions
Fuite EVAP — bouchon de réservoir desserré
Une fuite de bouchon est détectée dans le système EVAP.
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Most likely causes
- Bouchon desserré ou manquant
- Joint endommagé
Symptoms you may notice
- Check engine light
Checks to run
- Tighten the fuel cap
- Inspect the seal
- Clear and retest
Tools you may need
OBD-II scanner
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.