What can you do if you have spent almost a thousand fixing the code for cam sensor on a 1997 Ford Thunderbird and the service engine light still stays on and it won't pass smog?

Depending on what you mean what can you do, in NC the smog can be waived, if you apply early enough. I would see about checking the codes else where maybe someone will know more than just following the trail that the computer based on experience from the silly things

GET RID OF IT. But if are like me and are attached to it, do a complete engine overhaul