I've just changed the 2.3T engine in my Saab and have a check engine light along with some driveability problems at mid range. I would like to use a diagnostic tool to help resolve the problem. The test connector under the seat is not OBDII, instead it is a 10 pin one that is similar to the old Opel ALDL interface. Is this in fact the protocol and are there any software packages that members have used and could recommend? The schematics for the engine controls also show a "SFI Test Socket". Does anyone have info on how this is used and can it also be used for diagnostics?