I have the same problem. I have a 2000 v70R with a m58 awd and i cant get it past 4k i manage to fix new wirings for clutch pedal sensor and have it retuned at a local shop with no sucess.
@expedition1945 your car needs to be modelyear 2005 or newer, so vdash can decode your CEM pin, than you need a virgin (brandnew) or viginized (existing data and security pin removed) CEM to write to. For the rest of the procedure you should contact vdash support.