Morning!
XMP = XDF I am assuming! .xdf would be the correct term for the road map for a given operating system.

There is no known public .xdf for the '9623 operating system for use in Tuner Pro

To make this work with a P59 ecm you will need to find a similar flex fuel 5.3 file that uses the '7603 operating system, then start from there.

'7603 OS is from 2004 and the most widely used and documented. Can be found here: http://gearhead-efi.com/Fuel-Injecti...rPro-Bin-Files on this forum and also on the Tuner Pro RT Website for the valid .xdf - the .xdf I use comes directly from the Tuner Pro site.

VATS Disable is a value of: 2 on this particular OS