Hello I have a 1999 uk turbo 2000 and I’m looking in to getting it remap.

I have got an ODB port in my car in the driver’s foot well but when my m8 plug the snap on modis in the port it did nothing, there are wires going to the plug but it didn’t communicate with the car.

I have spoke to sum 1 quick about getting it remapped and they said if I have an ODB port they can do it!

Don’t no what is going on with mine? Is it ment to work? Or is it a Subaru thing just to put it there but not able to use it? Or is it not used for fault codes just for remapping?

I really don’t know help if you can lol...