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P0411 Diagnostic Trouble Code Discussion for May 2004

Secondary AIR System Incorrect Airflow Detected

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Trouble Ticket Help Requests for DTC P0411
Help Request Posted
1994 Mercedes-Benz S320 SWB 3.2L MIL Lamp on, AIR PUMP INOP. VIN: WDBGA33E9S
P0411: air injection fault. Hello IATN members. I have a problem with the air pump system with this one.It is also my father`s car which is even worse. Check engine came on with an air pump code. Clutch will not operate. Found wire harness falling apart so we replaced with new. Tested re...
May 11, 2004
1997 Volkswagen Jetta GL 2.0L MIL Lamp on, blows fuse VIN: 3VWRB81H1V
P0411: secondary air system. ... with MIL on. Code P0411 - secondary air system. We also found out that 30A fuse that powers seconday air relay and pump was blown. We replaced secondary air pump (new from VW dealer), fuse, and reset ECM. Two days later it was back with the same symptoms. ...
May 12, 2004