IrishS1

Just returned from a frustrating day working on my S1. Removed old turbo and replaced with new one(new to me) Everything seemed ok and then the smoke started.I put this down to oil in the exhaust etc from the last one letting go. Took her for a short drive and every thing seemed to be working as it should except for the smoke. Brought it back to the workshop only to find that it would now not idle properly. Then it went of a cylinder and would not rev beyond 3000 rpm. After switching her off ,she refuses to restart. Before coming home i checked the plugs and found them to be oily. Also seem to be getting a little oil seeping out between the turbo and exhaust manifold. Im so pissed off ,today i took the decision to sell her, but cant do this until i get her running again. Any help/advice greatly appreciated. Thanks in advance.