[50.DRG]

Hi guys,
I have a question if it s possible someone to help
I have a F34 325d biturbo ( remapped at 230hp and 470nm) and i wanted to do some maintenance on dpf side, i ve cleaned it in a special service where they do this, replace the dpf exhaust sensor and also the oxygen sensor) after this reseted the adaptions for exaust and the counter for dpf. Now i have an error
25D400 exaust backpressure sensor before turbocharger arrea upper physical limit exceded
The sensors were replaced oem and new , this error appeared twice after 200-300km , any ideea what should be changed ?