wanting to tune my 2006 truck

I have had EFI Live for a while and have tuned several vehicles including my 2005 turbo Silverado. I also have a 2006 Silverado I put a turbo on. I wanted to run a COS like I did with my 2005, and just assumed I could flash in the 2005 OS and be off and running. Well when I flash in the 2005 OS I get Reduced Engine Power U0107 code, and the truck instantly goes into limp mode. I cleaned every ground on the truck and the problem does not go away. I flashed the original OS back in, and the problem goes away. I want to be able to run about 12 PSI of boost. Thanks

I think 06 is when GM switched the pedals and TAC from 03-05. Unfortunately EFILive doesn't offer a COS for 06-07 LS1B controllers, so to use an 05 OS you'll need to swap a few hard parts and make the entire DBW system act as if it's an 05.

Erik,

Thank you for the reply. I will try that to see if it works. That would be a simple fix in my book.

If anyone comes across this, I put in a TAC module, pedal assembly, and harness from the pedal to the TAC from a 2003 Avalanche and have not had any problems (yet). I flashed in the 05 OS I wanted. The GM part # on the TAC I got is 12573059. Thank you for that advice Erik.

Glad to hear you've got it sorted out!

Trying to do this to a swap truck that has 2006 wiring pedal tac and ecu in it. I understand what you did but I cant get the older file to load it comes up as $0517 File memory size and controller memory
size mismatch

An attempt was made to flash a 512K file into
a 1MB LS1B controller or a 1MB file into a
512K LS1B controller.

Please advice Thanks

Quote:

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Originally Posted by firepower

Trying to do this to a swap truck that has 2006 wiring pedal tac and ecu in it. I understand what you did but I cant get the older file to load it comes up as $0517 File memory size and controller memory
size mismatch



An attempt was made to flash a 512K file into
a 1MB LS1B controller or a 1MB file into a
512K LS1B controller.

Please advice Thanks

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What is the GM number on your computer? You should be able to tell when you open the file in tune. Also just to make sure, you are trying a complete overwrite right?

Operating System 12606807
Hardware Number 12589162
Calibration ID 12606603
Yes was trying to completely overwrite with another file