Well guys and gals, what am I looking at now? I was experiencing hard shifts and the speedometer dropping and then popping back up while driving. This happened at all speeds. I checked my Aeroforce for the codes and it was showing P0502 and P0503. Those are both related to the VSS. I spent the 20 dollars and replaced that but upon the next drive it threw the P0502 again and is shifting hard and the speedometer is jumping around still.
What is the next thing that needs to be checked? I have some ideas but I came to the experts before I waste my time.
Thanks in advance.
Info on the car is 2001 GTP 120k