My scoob missfired a few weeks ago,did an ECU reset & ran fine again but now ive the same problem again,it has also started to overboost was running standard @ 0.9 now boosts up to 1.5
when the boost kicks in gets to 5000 rpm missfires then sounds like its running on 3 cylinders
anyone have any ideas please,dont know anything about engines myself
Tom

 

Drive off boost and see you mapper mate first point of call i think