I did't find this, only the key programming. I used to, try connect to pump via FIP and CAN bus, but with negative results. Another progrms use K line to comunicate. Maybe the CAN bus from the pump is dedicated only to transfer data betwn ECU?
its done in PATS programming. ive not done it with maxsys but if it can do it its there under module initialization (add FIP or PCM) i normally use dec ss2 (faster) or IDS