2000 lincoln LS manual stalls when stopping

[Donald123]

I have a 2000 lincoln LS that I just purchased. It has 84,000 miles. The car turns over and runs fine. After it reaches temp it begins dropping down to 100 rpm and stalling out anytime the car is shifted into neutral. When I'm at a light I have to reg the engine to keep it running. I had a bad camshaft sensor. I changed that. Any help would be great. Thanks