Search:

For some reason it worked this time. I've downloaded my stock tune and can start making changes to it. Thanks for your help.

I upgraded it to 55 as soon as I got the unit.

My screen looks just like that. I have the factory radio so that's not the problem. Perhaps it is the alarm. I've got to figure out how to disable it completely.

I did select the LLY controller type in EFI live. I started originally with version 7.3 and it didn't work at all. When I upgraded to 7.4, It looked like it was going to work, but then gave me the...

I did that before trying to scan the ECM. I've got a 2004.5 LLY.

Do I need to disable OnStar? If so, what fuses need to be pulled?
I've got a Compustar alarm / remote that I don't know how to...

I'm trying to download the stock ECM tune. It starts communicating with the ECM and then I get the following message:

Preparing ECM for reading flash
ECM seed is $78D3
Error
Disconnecting...