so......

how goes it?

i have a very similar problem, 2010 4.8l silverado, speed limiter will not disengage. i am running the 9t17b revision you guys sent me.

thanks alot guys, it works great now!!

so, any word on some progress? i have no idea how long it takes to write the new code thats needed, just wondering....

heres my original backup file:

i have a 2010 silverado with the 4.8l, your site says the vehicle is supported. i had to update the unit to revision 9r16 (u7194), but it still won't tune the truck in any way. i can datalog through the tool and check/clear trouble codes, but it says "calibration not supported" whenever i try to ...