Well thanks to Buffy for lending me the ENTIRE TOD system from his race truck (transfer case with speed sensors and electromagnetic coil, computer) to help troubleshoot. I thought wiring or computer since so many codes were thrown, but replacing just the speed sensors seems to have cleared up the problem.

Now back to my regularly scheduled non-fishtailing when hanging the 90 degree uphill left onto my street (ridiculous how fast you can go with TOD).