Yes Horsey...
from our 99's Owner's Warranty Guide:
""...Under the Emissions Defect Warranty for passenger cars and light duty trucks, Ford Motor Company also provides coverage, including labor and diagnosis, for 8 years or 80,000 miles (whichever occurs first) for these emissions parts:
² catalytic converter
² electronic emissions control unit (PCM)
² onboard emissions diagnostic device"
Advise getting service manager to confirm this warranty as long as you're within mileage limits.
Take along your "Owners Guide" and show the manager how you recharged it.