P0496 — Diagnose and fix P0496 Definition P0496 EVAP Flow During a Non-Purge Condition The Evaporative Emissions System is designed to prevent fuel vapors from getting into the atmosphere during refueling. The system absorbs fuel vapors in a canister filled with activated charcoal while you fill the tank. After filling, the system opens a purge and vent valve. The engine sucks fuel vapor from the charcoal canister and burns it in the engine and the vent valve allows fresh air into the canister to purge it of all stored fuel … Read More
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