Is it possible to change the OS in a 98 pcm? The Vets use OS 19980200 and the F-bodys use OS 19980100.
Is it possible to change the OS in a 98 pcm? The Vets use OS 19980200 and the F-bodys use OS 19980100.
yes it sure isOriginally Posted by TurboVet
WWW.EFIAlchemy.com
Does anyone know how? Is it possible with efilive?
Just open the file with the OS you want to load on to that PCM and do a full relash (the fat red arrow in the tool bar) of that OS. It should write it to your PCM
01 ECSB 1/2 ton 4x4 Forged 5.7 LS1 GMC
Custom KBracing front mounted, BW S480, intercooled turbo
I tried that and it would not load because of the different OS.Originally Posted by kbracing96
Humm... You clicked on the fat red download arrow not the skinny one right? Also, you did select the right PCM type too right? (97/98 Gen III) Unless I'm mistaken, it shouldn't care what OS is in it, it should just write the new one over the top of it.Originally Posted by TurboVet
01 ECSB 1/2 ton 4x4 Forged 5.7 LS1 GMC
Custom KBracing front mounted, BW S480, intercooled turbo
I tried to load it with the skinny arrow. I will try the fat one. Thanks for the reply.
Ya, that's your problem. The skinny arrow is a cal only reflash. The fat one is a full OS reflash.
01 ECSB 1/2 ton 4x4 Forged 5.7 LS1 GMC
Custom KBracing front mounted, BW S480, intercooled turbo
Thanks for your help. Worked great.Originally Posted by kbracing96
No problem
01 ECSB 1/2 ton 4x4 Forged 5.7 LS1 GMC
Custom KBracing front mounted, BW S480, intercooled turbo