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P0411 Diagnostic Trouble Code Discussion for April 2006

Secondary AIR System Incorrect Airflow Detected

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Trouble Ticket Help Requests for DTC P0411
Help Request Posted
1998 Audi A4 2.8L MIL Lamp on VIN: WAUDD28D8W
P0411: secondary air injection. ... code comes back! P0411 secondary air injection. I've replaced all the components & I still get the code, I've noticed that just before the light comes on the engine idles rough for just a couple of seconds. As soon as it smooths out the mil light comes...
April 14, 2006
2001 Volkswagen Jetta GLS 1.8L MIL Lamp on VIN: 2VWSD29M21
P0411: incorrect secondary air flow. hi everyone i need help,this problem first time meet,i bypass air pump,use two wire form battery terminal to air pump,testing air pump is working.i guss two os sensor was bad,and recommen customer replace first.
April 15, 2006