Marcus Brutus

I have this same problem, so had a stage 1 remap, however this led to a fault code for the torque calculator (although no DPF code) I could cancel this code okay and as long as I drove without hard acceleration car was fine, however as soon as you put your foot down engine light came on and car goes into limp mode. Had the remap returned to original settings and DPF light is back on! Any suggestions??