The original one had originally started slipping around 140,000 and made it to 150,000 slipping on a 1-2 shift. Then it received some abuse in winter time getting stuck on the road. When it finally gave out it was all burnt up. Last fluid change on the original was around 100,000.

Also: Today put it on ramps and unplugged the transmission electrical connectors that run up to the computer. While it was in limp-in mode, it experienced the same problems as before. That should eliminate the computer as being the problem, leading it back to some sort of engine/transmission type of deal.