Okay. I tried all the tune options with egr off apart from stage 2. The ECM-44A0 comes back with them all as soon as the car is started.

Also there is now a code ECM-2BAA (Particulate trap. Value) and a particulate trap full message on the dash. Taking a long drive ~1h @ 80kmh did not make it go away so im assuming the regeneration does not work.

I also briefly tried EGR + DPF off tune which got rid of the DPF code but the EGR code was still present.

Unplugged there is even more codes... Ill try a different tune and report back.

V70II with D5244T5 engine.
The car has a broken EGR valve. I cleaned the whole intake and added a blocking plate to the EGR valve. After that I loaded the car with Stage1 + EGR off tune.

After all that the car is running fine but the ECM is throwing ECM-44A0(EGR position sensor. Signal too low.) code for the EGR valve. There is motor system needs service notification on the dash but the car does not go to limb mode. Should the DPF regeneration work normally in this condition?