Had a terraclean done today in attempt to cure an overboost issue on a 2.0 TDi BRE engine, had a mityvac on the actuator an all seems good there and also the vac diaphragm seems all good. Had a diagnostic check on the car before & after an all was good there also. Now overboost occurs around 3200 revs or nearing a 3 figure speed but I get no flashing coil lights when this happens. Used to occur around 85mph on lower rpms. Any idea's anybody? On a plus side though, the terraclean guy said mine already had a dpf delete, so its probably had a remap too!