have an engine code for a check engine light 1423 and 1411 for an Audi A6 Quatro 2001 P1411 - secondary air injection system flow too low Bank 2. P1423 - secondary air injection system flow too low ...
...engine lights on , i checked it at autozone and it says that there are two errors and the codes are 1423 and 1611 ... i need explanation please . ...
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