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P0411 Diagnostic Trouble Code Discussion for March 2011

Secondary AIR System Incorrect Airflow Detected

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Trouble Ticket Help Requests for DTC P0411
Help Request Posted
2003 Audi A4 Quattro 1.8L MIL Lamp on VIN: WAULC68E43
P0411: Secondary Air/ incorrect flow detected. I have a strange one here. The SAI will not pass readiness. The soleniod works suppling 16 in vacuum to the kombi-valve. Kombi opens and flows. SAI pump is quiet and blows strong. The problem is the flow is reading too high instead of too low. If I bleed off s...
March 01, 2011
2003 Volkswagen Passat GL 1.8L MIL Lamp on VIN: WVWPD63B03
P0411: secondary air injection incorrect flow detected. ... the p0411 Secondary air injection incorrect flow detection failure. We have inspected the common failures on the system, the vacuum hoses appear intact and all the tubing looks to be in place. We did not remove any of the hoses because they are all crimped...
March 10, 2011
1999 Porsche 911 Carrera 3.4L MIL Lamp on VIN: WP0CA2997X
P0411: Secondary air injection. ... i may be overlooking. The same codes are current after the client has driven the vehicle approx. 7 miles. P0410, p0411 secondary air injection system codes.
March 17, 2011