Originally Posted by
blindsquirrel
Hover over the Injector Flow Rate table button, the little info-tip description at the bottom will show the allowed limits for every parameter.
You can not use HP Tuners to change the OS from one platform to another like that. There are 8 segments in the Gen4 ECM. HPT only reads/writes 6 of them. The two that can't be touched are for the ETC. To change an OS on a Gen4 ECM needs GM SPS and a compatible flashing tool. Doing what you did has put the new OS on there alongside the original Engine and Engine Operation segments, whatever those came from.