Changing operating systems. From 12587604 to 12587603

[Pulse_GTO]

Is the vehicle a 2004 GTO or are you just using a P59 out of 2004 GTO in a conversion project?

If it's a conversion project, the 2004 GTO computer already has the IAC drivers and you can change DBW to DBC in the software, so flashing to a Corvette OS should be fine.

If it's not a conversion project and you are actually driving a 2004 GTO, I would strongly advise against swapping to the Corvettes OS. I'm attaching an xdf for the 2004 GTO OS you can try out.