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  1. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi Guys my engine managment light has come on and after reading the ecu with my peake R5-FCX3 It came up with "Periodenduer lambda voor Kat" my German isnt that good but I assume it means 02 sensor before cat? I bought a new 02 sensor and fit it, cleared the codes and 50 miles later the light...
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