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Code

P0456

Evaporative emissions

Très petite fuite EVAP

Une très petite fuite est détectée dans le circuit EVAP.

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Most likely causes

Micro-fissure
Joint de bouchon

Symptoms you may notice

Check engine light

Checks to run

Inspect fuel cap seal
Smoke test with a very sensitive machine

Tools you may need

Smoke machine OBD-II scanner

Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.

Related codes in Evaporative emissions

Petite fuite dans le système EVAP

Défaut circuit vanne d’aération EVAP

Grande fuite dans le système EVAP

Capteur pression EVAP — signal haut

Flux de purge EVAP hors fonction

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