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P0411 Diagnostic Trouble Code Discussion for March 2012

Secondary AIR System Incorrect Airflow Detected

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Trouble Ticket Help Requests for DTC P0411
Help Request Posted
2000 Volkswagen Passat GLS 1.8L MIL Lamp on VIN: WVWMA23B6Y
P0411: insufficient flow secondary air system. we keep getting a p0411 code. we replaced the valve at the rear of the head, checked the plumbing to and from air pump, verified vacume to the valve. we replaced the upstream oxygen sensor, The only thing I could not test because there is no spec on alldata, i...
March 14, 2012
2001 Volkswagen Jetta GLS 1.8L MIL Lamp on VIN: 3VWSC29M11
P0411: . ... MIL on showing P0411. Secondary air motor will not turn on on cold start, I can command it on and it blows good stream of air, tested all solenoids and valves. all tests were run with ECT well within the enabling condition and even tried it unhooked. Is th...
March 29, 2012