I've had this done a couple of year ago on my 95 Contour 2.5
Removed intake manifold for cleaning, etc and found fuel injector wiring harness had most of the insulation gone. It was very brittle and when touched it flaked off. I was amazed that the car did not catch on fire. Recall was for up to 100,000 miles or 10 years. When I had mine done I had 119,000 miles on the car. Ford area rep that was contacted offered to cover the cost up to 90 percent with myself covering 10 percent remainder. I agreed and entire engine harness wiring was replaced by dealer.
Regards,
Bob