vwturbo Posted January 22, 2008 Report Share Posted January 22, 2008 hi guys hope you can help me,ive a passat 1.8t 2002 model,lights come on,on dash took to garage and code p0420 comes up,been told, cat system efficency below threshold,bank 1,so changed sensor,and the lights come back on,help please im lost on this Link to comment Share on other sites More sharing options...
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