OBD-II is a US emission standard. It's not manditory til Jan of 1996. Few cars made in 95 are OBD-2. I hightly doubt your 94 Saab for none US market is OBD-2 compliant. Even if the plug fits, it may not be OBD-2. I've seen some 94 and 95 cars where the plug fits but my scanner wont connect. Also, the software should come with the OBD-2 reader. If not, there should be a software help page for you to write your own OBD-2 program.