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Posts Tagged: Audi P2404

Audi P2404

Diagnose and fix Audi P2404 An Audi P2404 trouble code is a malfunction with the evaporative emissions systems. Specifically, a P2404 – EVAP System Leak Detection Pump Sense Circuit Range/Performance problem. The evaporative emissions system captures fuel vapor during fueling and stores the vapors in a charcoal canister. Later, when the engine is running, the system opens a purge and vent valve that allows the engine to suck vapor laden air into the engine where it is burned and also allows fresh air in to clean out the canister. Evaporative … Read More

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