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hiccup or judder

  1. 159 1.9JTDm hiccup/judder at full boost

    Alfa 159, Brera & 946 Spider
    Hey guys... I'm in need of your wise knowledge. As the title says, my 159 has developed a hiccup/judder at full boost (gauge speaking) pretty obvious at around 2.9k-3k rpm. On hard accelerations at 2nd and 3rd gears it presents these symptoms, if I step the throttle down progressively, it only...