Replaced TPS with a brand new OEM part. My trans kept locking/unlocking so I would jam the gas peddle a bunch of times as quickly as I could, then it’d stop for a few months. One time I cut the car off out of anger and jammed the gas peddle a bunch. I had been thinking that jamming the gas peddle at the time the issue was occurring was what would make it go away. So I started it back up but the issue was gone. It returned in a month or so just like it had been and then I thought that maybe the TPS wiper had a build up of copper particles on it causing intermittent signals to lock/unlock the torque converter. I figure over time the contacts have been worn down by the wiper or the wiper itself is worn down and the particles are building up along the path of the wiper, specifically the contact area where the throttle stays in most often which would be highway cruising. The only thing that could possibly have anything to do with the transmission by hitting the gas peddle with the car off is that TPS! Right off the bat the 1 to 2 shift is very noticeably softer.. and the 2 to 3 shift seems to be faster at low acceleration. That TPS may have been bad for some time. Of course my other transmission didn’t have a single issue whatsoever with this same TPS. Update: The improvements listed above are definitely there. I also notice that it no longer stays in 3rd gear when taking off from a rolling stop which would cause very poor acceleration. In general, the vehicle drives much better. I am still a little slow taking off from red lights and such compared to newer cars around me but there are a lot of instances where I have the power I need to drive normally with traffic because the transmission selects the correct gear for acceleration. A heap of confidence has returned!