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Tuner
4L80E Segment Swap.. TCC not locking up... what is going on?
I did a 80E segment swap, noticed the TCC wasn't locking up...
I read from a person that the donor file they used was "corrupt" which caused the TCC to not lock up. So I downloaded a different tune file (with the same OS) and did the 80e segment swap. Same thing though - TCC won't lock up. I did it a 3rd time, and the TCC is still not locking up.
When I use HPTuners scanner, I can manually lock up the TCC no issue at all, but for some reason the tune will not lock up the TCC.. I have double checked the brake sensor - and it is giving the PCM a 12v signal when the brake is not pushed in (which is how it should be)
I also saw that false misfires could cause this issue. I maxed out all of those tables, but still the TCC will not lock up.
Any advice? Tune attached
1970 Chevelle with a PSI Conversions wiring harness running a 2005 LS2 (24x) DBC with a 2007 4L80E - 2500 stall converter from Hughes Performance
Cody Chevelle Final Rev2.hpt
Last edited by TXjeepTJ; 07-07-2018 at 02:24 AM.