Used for sale in Cumberland, RI

1990 crown Victoria for sale. The car was running beautifully up until a few months ago then it just started running really rough. It has had a tuneup and many other things I also still have parts that have not been installed my husband does not wish to continue trying to figure it out we do have other cars. My husband disconnected the exhaust and catalytic converter to see if it was locked up but it is not. I do have a list of parts that has been changed. I feel that the computer/brain needs to be properly reset.

The car has always been maintained and never driven in the snow/salt. It is a rust frame car and has never been smoked in. We are the fourth owner. And has never brought any Oil, does not smoke, does not leak any fluids under the car whatsoever. And the air-conditioning and heat do work. It has a slight small non-noticeable dent on the driver side rear fender and driver side front fender. There are no rips in the interior and the roof does not have any either. So it could be dyed to bring it back to it original Luster.

The car is registered and qualifies for antique auto which is just a couple hundred dollars a year for her coverage.
This is a really beautiful car any questions please feel free to ask. Thank you.