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Potential Tuner
8L90 Stock File
I'm not even sure these are shareable, but I was hoping someone may have a stock file from a 2020 8L90 on a 6.2l. Trying to compare it with the tune on a 2015 T87, we swapped a late model 8l90 we had laying around which was obviously not smart. We then swapped the internal harness and range sensor to get it working but the shifts are not usable. May be a lost cause and something I'm missing entirely, but I was hopeful it may just be some different stock tuning. Thanks for any help
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If you could swap the control solenoid body from the 2015 it would probably work. I think. Did the 2020 have auto stop? I think that would be the only hold up...
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Potential Tuner
Hey thanks for the response, it does have auto stop but we just left it disconnected with the old harness. I was thinking the solenoid body would have to be swapped so that will be the next attempt. The new transmission's for the 2015's are on back order currently so sounds like we have plenty of time to keep trying lol. I will report back what I figure out, but I have a couple other projects that have jumped to front of the line for now.
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