hi guys, posted this somewhere else in the forum, obviously not in the right place...but anyway... got a cooper s 08, had from new, got 104 kms on the clock, has been running rough for a while, lots of misfiring when cold, everything points to intake valve gunk so stripped down manifold and sure enough horrible mess, cleaned it all up with pick,screwdriver, carbon cleaner and air hose, took me two days with a mini camera down the ports but pretty happy with my careful but crude approach, put it all back together, thought I’d flush it through with sea foam just to make sure, after a test drive car ran beautifully but no turbo activation, after on line researching and visual engine checks decided to pull it down again, built it back up slowly double checking everything as I went, after finishing installation and another test drive still the same.... back on line... gotta be a leaky pipe somewhere.. the only items I didn’t replace was the manifold gaskets cos they looked good, only cos after a trip to my car shop, changed oil and filter at the same time, they didn’t stock the gaskets, had to wait 3days, impatience prevailed, did I screw up? Could this be why I ain’t got no boost? Also found the large tube linking air box to the turbo had a split in the bottom, but that’s got a rubber seal inside so couldn’t hear any hissing from that area, also got an engine light on dash showing half filled engine symbol​​​​​​, ordered new gaskets today and thinking of changing out diverter valve, should have mentioned turbo was good before intake manifold tear down, put me mit inside, spins smooth with no play, what do u guys reckon? What am I missing?