So yea.... I an newer to these buicks and mine has done this before but it went away and I am not sure as to the cause of either, coming or going. However here is the problem, when you get on the engine and it hits 3000 rpm and the turbo starts to spool the engine starts to break up. I checked all the plugs, they look great. It is also kicking lots of fuel out of the tail pipes. Not sure the problem but any help would be great. Thanks