dayne 0 Posted March 14, 2017 Report Share Posted March 14, 2017 So after ultimate dubs driving home and the engine management light comes on the dash, it's a mk4 r32. I have recently changed the exhaust to a straight non cat pipe so I'm guessing that it's a lambda sensor throwing a tantrum. If it is this problem just wondered how many others have had it and how to stop it from reoccurring. I don't have a vag com reader so any recommendations on a fault code reader/delete would be welcome too. Thanks. Link to post Share on other sites
mattvr6 133 Posted March 14, 2017 Report Share Posted March 14, 2017 With a de cat pipe it will put a fault up for bank 2 sensors (after cat) I had mine mapped out when I de cated mine, with a fault there the ecu goes in to a "basic" setting as it's picked up a fault, i.e. U'll lose power fuel consumption etc Link to post Share on other sites
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