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P0411 Diagnostic Trouble Code Discussion for June 2004

Secondary AIR System Incorrect Airflow Detected

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Trouble Ticket Help Requests for DTC P0411
Help Request Posted
2000 Volkswagen Beetle GLX 1.8L MIL Lamp on VIN: 3VWDD21C6Y
P0411: secondary air system flow problem. ... activated,exhuast noise can be heard coming out of the combination valve through the fresh air hose from air pump. This exhaust noise stops once the air system is deactivated. There is residue from the exhuast in the fresh air hoses back to the pump. There...
June 02, 2004