Got a little problem, got car back from mapping, drove home fine and for rest of the evening, then all of a sudden couldn't get full boost something holding it back like cutting something out, changed plugs, coils and checked over for any leaks and can't find any, sounds like a machine gun
Top dead centre sensor? This happened on my Integralle. Had flamed shooting out of the exhaust but almost zero power on boost. It's a simple fix if that's what it turns out to be??
OP has never replied back.... My issue was water from windows washer T-piece leaking into cylinder 1's spark plug hole and flooding 3/4 of it.