Changing operating systems. From 12587604 to 12587603

[creativelemon]

As the title states after some research it seems in some cases it is recommended to outright switch to an operating system that is more supported. Im curious if that is something possible to do if anybody has any experience in this regard and has any advice? i have a 12587604 OS from a 2004 gto ls1 m6 dbc. Is it possible to switch to a 12587603 OS from say a 2004 c5 ls1 m1 dbc? Are the tunes identical? Is all i would have to do is flash the full bin from the new OS to my car? any feedback or help would be greatly appreciated. Thanks! my bin is attached.

[dave w]

Not All Blue / Green PCM's are DBC: https://www.lt1swap.com/cable_conversion.htm

dave w

[dave w]

2004 Corvette files attached

I don't remember where I got them from.

dave w

[creativelemon]

Thank you. Idk what blue or green means to be honest. Tgat Corvette should work i assume? Im not experienced in swapping operationg systems at all. Is it the same tune just different operating system?

[dave w]

1024K PCM's have connector colors Blue / Green

512K PCM's have connector colors Blue / Red

dave w

[creativelemon]

1024K PCM's have connector colors Blue / Green

512K PCM's have connector colors Blue / Red

dave w

Ah ok thanks for your help, im relatively new to ls tuning im from the Subaru tuning world which is much easier. So i know my car is drive by cable so that bin should be too? I should be able to flash the bin and it should be the same?

[creativelemon]

actually it appears from further research that corvette one you attached would work however i would have to manually compare every table and transfer any data from my bin to the corvette one? i hope thats not correct because its very time consuming but doable and makes sence. Im hoping someone here has experience swapping OS because there is over 1000 tables i would have to check copy i believe

[In-Tech]

I have not converted a blue/green to drive by cable. The corvette calibration is drive by wire. I am curious what others have done to make this happen since we don't have IAC tables or are they already there and I paid no attention? :( It seems to me 24lsx1(sp?) has quite a bit of experience so maybe he will chime in.