I had a torque converter installed early spring March of this year. Ran great till about a month ago. Issue I was having was at any speed 60+ my rpms would be at 2500+ if I gave it a little gas they would jump instantly to 3000+. CEL came on and threw the code po740 (tcc solenoid) I went ahead and replaced the “solenoid pack” changed fluid, filters ect. Put it all back together and still having same issue. So then I thought maybe the converter went bad. Took it out and shipped it to edge performance converters bc that’s where I bought it. Still had my warranty. They took it apart and said there is nothing wrong with it. Currently being shipped back. I’m stumped at this point and I don’t know what to do. Any help would be appreciated.