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pcv or oil

  1. PCV/Oil breather 156 1.8

    Alfa 147, 156 & GT
    Hello! I just need one information, when I started to work on the car a month ago, my idle was all over the place, from 500 to 1500 rpm and I managed to cure this with second hand oil breather valve. But there is still a problem of rough idle that I cannot work out. Can somebody...