I have a code for the right rear wheel postion sensor. I disconnected the rod from both rear sensors, found the left one to have spring tension in it, where it will go to its highest point. While the right one has no spring tension in it, it will stay wherever you move it to. Does that mean that the right one needs to be replaced? The car rides low, when I put a load in it, it rides even lower. I have notice that other STS ride high in the back. Car is a 2000 STS, no other codes are showing except for C0630.