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EFILive Tuning Software Discuss custom tuning & data logging the LB7, LLY, LBZ & LMM Duramax engines as well as the Allison transmission with EFILive software. is the premier Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
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Old 04-15-2017, 01:06 AM   #1 (permalink)
Low Boost
Join Date: Jan 2017
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Tuned Ecm Question

Hello all.
I recently acquired a tuned ecm from a friend. It is said to have efi live (dsp5) from dans diesel performance. Am i going to be able to swap this into my truck without any problems? I have heard about the VATs relearn, but will it work if the vin for the tuned ecm is different than my original ecm?

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Old 07-04-2017, 05:17 PM   #2 (permalink)
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Location: Ontario Canada
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It will work, but if you ever scan the computer for any reason itll come up with the other vin. This would be a problem if you need to have the truck e-tested or have to take it in to dealer for work. Anybody with efilive can change it for you at a very low cost, and they can do the vats relearn at the same time


2008 gmc sierra 3500HD LMM bds 7" 37" AT3Ws,built trans,possible s475 over stock build,
2004 Suburban 2500HD, 4x4, LBZ/Allison, DSP5, MBRP,
2005 Hummer H2, Blk on Blk, LLY/Allison 4x4, EFI Live by ME!
2018 Tahoe premier RST (future Iml or l5p?)
2001 GMC Yukon Denali XL 2500HD 4x4, LB7/Allison EFI Live DSP2 by Theferminator, MBRP,
2003 GMC 2500HD 4x4 CCSB, LLY/Allison, DSP5 EFI live by Idaho Rob, 5" MBRP exhaust, 6" pro comp lift, 35" nittos, LBZ mp
2003 GMC Yukon XL, 2500HD, 4x4 LBZ/Allison, EFI live by Idaho Rob
2003 GMC Yukon Denali XL 2500HD 4x4, LBZ/Allison, EFI live DSP5 by Theferminator
2006 GMC 3500HD C&C, LBZ/Allison, 14' aluminum dump bed
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