Bobcat,
The fuel bowl can develop small holes in the bottom of it fro m debris swirling around inside it. If this is the culprit you'll have to remove it clean it out and patch it with JB Weld, if you do this replace the rubber fuel lines while you have everything out. There are hose clamps on the rubber fuel lines you can try tightening those. And then there is the fuel pump. If it's going South on you, you'll just have to replace it. It can be done without removing the turbo. If you see fuel leaking on the ground, usually by the front passenger side, that is a good indicator your pump is leaking.
Hope his helps you track down the leak.
Craig