I will try and make this short.

Oil shot through hose connecting intercooler to airbox. The one with the twist locks .Leaked kill alternator. Got alternator replaced. Noticed the hose was not twisted closed and it happened again. i made sure said hose properly connected and bolted. If it happens again what next?
The engine codes suggest not enough air before MAS so is it intercooler? Could it be pcv?
Trying to fix the real issue before comes costly

07 c70 t5 143000mi