lots of snags

[lamby]

First off hello everyone.

im having a neverending saga with my 2.2 auto, first the started to need a dpf regen every other day (car is used for lots of short journeys) which was done then it came up with a red dpf warning and ran rough, so off to the garage it went, they diagnosed a egr valve postion fault, i cleaned it freed it all up fault cleared and has stayed cleared. So today it went off for a dpf clean, however they have called to tell me that it not has a gearbox fault warning on the dash, both egt sensors are reading -40 and it has a torque converter soleniod fault (code P0744) .

Im sure that all of these must be linked somehow but does anyone know how.