Hello I will assist you,
Is the check engine light on?
Have you checked the condition of the transmission fluid?
How does the transmission shift otherwise?
Why was the TPS replaced?
Do you know the code stored in the computer. If you do not have a code reader Autozone may be able to scan it for free. If you get a P0700 it is just a request from the trans computer to turn on the check engine light and there will be codes stored in the transmission that have to be read. I suspect the kickdown switch is faulty but it would be better if I knew what the computer thinks is the problem.
I know you probably tried this but the button on the shifter is in the OD position?
Let me know what you can