Im only noting this detail because this site was a great help when I was in need of answers on this specific car.190rev.net .
A forum exists for the 2.3 16v with plenty of similiar threads to view over on the California emission standards not being met.My guess is theirs alot of these cars that are still running the highways in the state of California .
In Texas these cars are exempt from regulation with the age of the car being 25 yrs or older.