LMM: Is my truck chipped?

[09dually]

I've had my truck about a month and just towed my trailer for the first time last weekend. I haven't done any mods, came with 4" dpf back magnaflow and k/n air filter.

While in t/h I swear it has a turbo brake. How do I tell if the ecm has been reprogrammed or what has been done? I assumed it was factory since the dpf and cat are still on.

 

[Yellow Jacket]

If it's just a single tune, someone with efilive could attempt to pull the tune and look at it to verify weather or not it is modded or locked...

 

[Awenta]

Not sure but I don't think you can pull files off an lmm ecm.

Sent from my SM-N910V using Tapatalk

 

[trashygasman]

In T/H the Allison downshifts to aid in braking. That may be what you are feeling.

 

[slipclutchms]

You can absolutely pull Lmm files from the ECM

 

[Harbin_22]

You can absolutely pull Lmm files from the ECM

Not if they have been tuned by EFI

 

[duratothemax]

Not if they have been tuned by EFI

DSP-5 tunes can not be read under any circumstances...single tune files CAN be read if the tuner did not apply the "block reading" patch.