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  1. Error Code P2251 - Changed Sensor 3 Times same issue

    Alfa 147, 156 & GT
    Morning, I have a 156 JTS Veloce II 2006 and from when i bought it until now (5 years) its constantly giving me Error P2251. This is the O2 Sensor 1 on Bank 1 and its (Negative Current Control Circuit/Open) Now I have just got it back from the mechanic who managed to replace again the 3rd time...