I wasn't suggesting that you replace the sensor... there may be nothing wrong with it!
Use a multimeter and test the circuits. See if your coild is even getting power. Check the electrical connector on the coil and make sure it isn't damaged.
Verify your timing belt isn't broken before you start changing parts. If you can find another Escort, see if you can swap coils or crank sensors to verify the problem. There are lots of Escorts out there in the boneyards!