KN088Y89 Posted January 14, 2020 Share Posted January 14, 2020 Hi all New to Audi's I have an A4 Avant b7 2.0 TFSI But I have a couple fault I need abit if help with The first one is engine management light came on fault reading Catalytic system efficiency below threshold bank1? Second my dash doesn't show milage but has a code L3 3-4 Any help would be appreciated Thanks Quote Link to comment Share on other sites More sharing options...
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