That is running rich. Cannot be vacuum leak in intake as that would cause lean running. Most likely bad lambdas or air leak in exhaust near lambdas causing them to have false readings.
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Currently 8less
2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D
8 history:
2006 A8 Sport 4.2TDI quattro SOLD,
1997 S8, reached end of life with gearbox failure
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