I bought a94 940T about 90 days ago! car had always been dealer maintained,( not that it matters )Car sat for 4 years. I replaced turbo,Vac lines and installed O rings that were left out when trans was replaced. I also installed plastic bushings in shifter ( also over looked by dealer) I also rethreaded # 3@4 spark plugs that were crossthreaded! I now have a fuel leek,It seems to be in the fuel return line, as it only leeks when car runs! Question where is the return line connected at the tank. Dan