I bought a 1994 9000 cse with a manual trans for 900 bucks. The guy that sold it to me was very honest and told me that it would be a project (which i wanted) and said the turbo seemed it was failing, it had a coolant leak, and it smoked on startup. On my way home from buying it, i noticed that the turbo worked fine and it was making boost, so i ruled out that the smoke was from the turbo and just burning coolant. That wasn't the case because when i started it the next day it smoked like crazy, but went away after it warmed up.i tested it for leaks and the amount of coolant that leaked wasn't enough to cause that much smoke. I started it today and I heard a loud pop from my exhaust (it has a 2.5 inch straight pipe so that might have made it more audible). shortly after that it started billowing smoke from the exhaust so i popped the hood and checked the turbo. there was smoke coming from the hot side of it, but not a lot. I took it for a drive and when I accelerated the turbo was still making boost but the more boost, the more smoke. pretty sure that its the turbo and i sure hope its not a head gasket.