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P0411 Diagnostic Trouble Code Discussion for March 2009

Secondary AIR System Incorrect Airflow Detected

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Trouble Ticket Help Requests for DTC P0411
Help Request Posted
1996 Volkswagen Passat GLX 2.8L MIL Lamp on VIN: WVWEE83AXT
P0411: secondary air problem. ... engine light on and code p0411 stored. I checked the usual causes for this code. Including the fuse on the relay and the relay. They both check good. I powered up the pump motor from the relay terminals, the pump runs and has good vaccum at inlet. There is...
March 02, 2009
2001 Volkswagen Jetta GLS 1.8L MIL Lamp on VIN: 3VWSC29M61
P0411: 16795 Secondary air injection incorrect flow detected. ... code. It shows up first, quickly followed by the P1557 code. I checked for TSB's and read the archives. The relay, fuse and changeover valve are good. I smoke tested for vacuum leaks and found none. I relaced the vacuum hos...
March 23, 2009