Great tip....thanks for that
Who would have thought that part could impact your boost pressure. But given that the vacuum cannisters control the wastegates - it kind of makes sense.
What other systems does that line provide vacuum for?
Sometimes on a cold start, my brake pedal will feel stone hard until the car starts and then it softens back to normal within a second. I think that is because of a loss of vacuum in that particular line you pointed out.