My CEL came on last summer and local Ford dealer said it was c.converter. They reprogrammed and lite went off. But it came back on Friday. Have a feeling it has tripped again. Dealer told me Ford has to cover c.converter for 100,000 miles. Sounds like the dealership owes you some money.

99'SVT. T.Red. JVC/Infinity sound. K&N,B&M shift,MOMO knob,KVR rotors&pads.If it weren't for "squeaks and rattles" it would be true love.
01'Miata LS. Crystal Blue. Handling package. Appearance group.Wood interior accents. "The fair weather toy".