Matching up the Correct OS #

[engr7581]

When selecting the correct LML base tune are we required to match up only the Boot, Slave, Main, and Engine part #'s like the LML quick start guide says or is it required that we match them all up?

For instance I have a 2013 LML and the only base files that I have found on 4shared that match up to it are from a 2011 LML truck. There are no 2013 files that match up to this truck. It is a 2013 crew cab 4wd with the LTZ package.

Thanks for any help

[Chavez91]

What segment #'s are you comparing to? Did you run the Vin in Tis2Web? or did you pull the segment #'s from the truck using EFI? Was the truck tuned with H&S or another tuner previously?

A 2013 should have
Boot : 12645752
Slave: 12645751
Main: 12645750

[Mitco39]

Run the VIN through TIS use those numbers dont worry about what the truck says it has. TIS will be right, the truck might not be.

[GMC-2002-Dmax]

When selecting the correct LML base tune are we required to match up only the Boot, Slave, Main, and Engine part #'s like the LML quick start guide says or is it required that we match them all up?

For instance I have a 2013 LML and the only base files that I have found on 4shared that match up to it are from a 2011 LML truck. There are no 2013 files that match up to this truck. It is a 2013 crew cab 4wd with the LTZ package.

Thanks for any help

It is most likely an incorrect 2011 OS being used in the 2013 as others have said.

The LML's should always be tuned with the 100% correct OS and segments if possible.

Tony

[engr7581]

Got it figured out! Thanks for the help it was beneficial.