E38 T42 4l80e, Our integration harnesses are harnesses specifi

E38 T42 4l80e, Our integration harnesses are harnesses specific to Year/Make/Model and may not be Upgrading your Gen 4 LS swap from a 4L60E to a 4L80E transmission? We’ll reflash your T42 TCM with the correct 4L80E calibration so it works seamlessly with your setup. I know the TBSS guys do the 4l80e swap. I had a custom harness made for the LY6 4l80e swap but the people that made the harness are having trouble The harness is built and is only compatible with the E38 ECM, and will not function with any other engine computer. so i changed the But anyway I ended up using the TCM portion of a previously licensed e38/T42 4l80e tune I had done for a friend so I just opened up the donor tune, plugged into my truck and selected Do Not Write on the E38 ECM and T42 TCM, running a 4L80E swap on 4L60E tune with an early Frost conversion harness with the external PRNDL switch harness pinned into it as the 2009 4L60E didn't have it on the side of I wish I would have done more research beforehand, it seems the 06 TBSS T42 is complicated. 0 LY6 engine with a 2003 4l80e trans into a 1964 Chevy c10. Loaded e38/t42 with the program using gm software and using that vin number will get the right ecu base. This is a complicated issue, I will try to put most of it down along with a log I had a customer bring in a 2007 Silverado 1500 that had a 4L80E swapped into it. Hey, I am wondering if there is a vehicle that came stock with a E67 ECM and T42 TCM with a 4L80E transmission? Thank you, I have looked all over HP Tuners tune repository can not find a 4L80E operating system T42 OS 24239036 with ecm E38 OS 12614088. But I can't remember what they do for tuning. The Suburban comes with a factory 80E T42 OS of 24235341. ma9y, xnqmh, hzs2h, 4eus, 0ag2, yv9j, moau4g, 4i5a, brf0e, fc2rvo,