Im swapping the 60e in my 01 Sierra to a 4L80e and need the segment swap. what do I need to do to get the 80e tables in my tune. running cos 01270003. Thanks for any help.
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Im swapping the 60e in my 01 Sierra to a 4L80e and need the segment swap. what do I need to do to get the 80e tables in my tune. running cos 01270003. Thanks for any help.
What GM OS did you start with before that COS...?
Do you have a 4L80E file with the same GM OS...?
If you can't find one, then you have 2 options:
- modify the transmission subharness (add relay, repin 2 pins) so the 4L60E segment can drive the 4L80E trans.
- swap OS to 12212156 (and copy your tables over), swap the 4L80E segment from a 12212156 file (which is easily found), apply COS 02020003.
My stock OS was 12208322. I dont know how to look up the same OS with the 80E file
The 2001 Silverado 6.0 Litre tune on tunefieldepot is OS 12208322 with 4L80
Go with a 12212156 OS and seg swap it to an 80E, kill 2 birds with 1 stone.
How would I go about doing that? Im picking the trans up tomorrow and dropping it off at my builders place.
Find a 4L80E 12212156 file, and copy all of your old tables into the new file (two instances of tunetool open, for each table do copy/paste with labels, take your time and do it right, takes about 2-3 hours, when done, engine should run as good as it did on the old flle).
And then do the COS upgrade.
Awesome. Thanks for the info. The trans in at my builders getting looked at. Souldnt be too long before I get it back