OK. So I was trying to help someone else out and forgot I couldn't post in that forum yet. Slloth has a TCU code 8 and so do I. My issue is a bad connection in the wire connector, on the harness side, not the solenoid side. I just completed some work removing the IM, engine harness, etc and I broke a little "tang" or something inside that connector when I was cleaning the harness and connectors. It proved to be a concern when I got the shift problems and the code 8, exactly as Slloth did.
So, check the wiring to that connector, and further back if you have to. I'm fixing mine tomorrow. Will post back when complete. Slloth, hope you fixed it already.
So, check the wiring to that connector, and further back if you have to. I'm fixing mine tomorrow. Will post back when complete. Slloth, hope you fixed it already.