When I get home I can share my 99 c5 stock on file if you would like. I don't know of any 2002 c5 that cam with os 12216125 that's the problem. I have 2 - p59 PCM's out of express vans and a tune I've been quietly working on in the background based on os 12587603 because the 2004 Corvette cam with this tune and there are the same OEM os's with flex fuel active you can use universal patcher to add it to a Corvette based 12587603 os with flex fuel patch and that same os tune I've been working on I've already inserted my 99 Vette VIN. So you think just going straight to the p59 PCM and switching the couple wires I need to is my best course of action?
Thanks for the help!!!
-Kyle