Factory tune

Yngdmax92

Active member
Sep 26, 2013
962
44
28
Can anybody help me out, I need a factory tune for a 2003 lb7. It's acting really really weird and I need to put it back to stock to see if the problem is still happening.

Again 2003 lb7
 

Yngdmax92

Active member
Sep 26, 2013
962
44
28
That's the thing, I don't even know if the original ecm file is in the truck. I need to locate that. Could I go by the bin some where ?
 

DAVe3283

Heavy & Slow
Sep 3, 2009
3,727
296
83
Boise, ID, USA
You can enter the VIN on calid.gm.com and it will tell you what OS and segments it should have. Post that up here and hopefully someone will have what you need.
 

THEFERMANATOR

LEGALLY INSANE
Feb 16, 2009
3,890
44
48
44
ZEPHYRHILLS, FL
If you're close to central Florida I can flash it for you to bone stock with my Tech2. If I had a spare ECM I could flash it, then read it out with my V2, but I know not to put the Tech2 to my 01 ECM that's been flashed to an 02 as this will brick my ECM(01 ECM's are fickle pains), and all the local yards want $250+ for an LB7 ECM.
 

Yngdmax92

Active member
Sep 26, 2013
962
44
28
2003 ccsb, 26 gallon tank, Bose leather, no sun roof.

I'll get the VIN as soon as he gets back in town, he works out of town.