Recent content by 98Quattro

  1. 9

    New here and need help with codes.

    Hi there. I'm a newb on this site and wanted to say hello. I own a 98 A6 Quattro 2.8L. I just replaced my pre-cat O2 sensors about a week ago and the check engine light came on. With my buddy's VAG-COM I received these codes: Address 01: Engine Labels: 078-907-551-AHA.lbl Part No...
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