I had CEL problem with my '96 Contour as well as a flashing O/D light. They never could find a good CEL code, however. Related problems were engine rpm's increasing and decreasing on its own while at idle. Also had intermittent problem where engine would completely die and not restart till I let it rest for 10 minutes. After LONG time with mechanic and dealer problem turned out to be wiring harness - fixed under factory recall or campaign.
