I have a 1992 Lincoln Town car I replace the TP Sensor because the check engine light kept coming on, I drove it about 4 miles park and set for a few minuets started it up and it would not go into reverse gear. So now it goes into reverse, changes from first and second but no third and overdrive. I finally found out the TP Sensor was the wrong one for the car replace it with the correct one and still no third or overdrive. What do you think the problem is? Thanks in advance.

Optional Information: 1992 Lincoln town car 4.6 L