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P0411 Diagnostic Trouble Code Discussion for September 2008

Secondary AIR System Incorrect Airflow Detected

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Trouble Ticket Help Requests for DTC P0411
Help Request Posted
2002 Volkswagen Passat GLS 1.8L MIL Lamp on VIN: WVWPD63B62
P0411: Secondary air injection incorrect flow. ... vacuum switch by MODIS. It means that electronic and electrical segments of secondary air injection system are OK. Combination valve holds vacuum. Vacuum hoses checked and replaced. Temp. gauge starts to operate only at 190F degree.Altough I can monitor co...
September 19, 2008