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Re: 8l90 swap, t87 questions.
Posted: Wed Jan 27, 2021 11:33 am
by TruckNorris
VX L67 Getrag wrote:You can try that, but I don't think it will work as there's normally a security section that needs to be written thats not part of the HPT file(it's in the eeprom) so if you can't get that off your original ECM then it will either need to be re-linked or just disable theft options!
I am so down to get rid of the theft options, lol any input on how I’d go about doing that?
Re: 8l90 swap, t87 questions.
Posted: Wed Jan 27, 2021 4:15 pm
by TruckNorris
So, I’ve found another option I’m gonna try. I found a 5.3/8l90 flash on the hp tuners repository, I’m gonna segment swap the o/s in my factory ecm to be pretty much a clone of what I need, and then I just need the correctly programmed Tcm and it should work.
Re: 8l90 swap, t87 questions.
Posted: Mon Apr 15, 2024 11:12 pm
by mytunes
Bump for an older thread..
So I know that the Allison Diesel T87(a)'s can be overwritten to that of a gasser as i've done it with success with GM SPS.
I'm pretty sure that you can also do a full write with HP Tuners if you have the correct TCM OS you want to flash.
Pretty sure you have this sorted by now, but for anyone else looking...