What could it be that my Vx is playing with the overdrive in the Highway? Engage, disengage after the 50mph and so on and on. No mod's done to my Vx's, it's stock. I do have problem with with engine light because of the EGR valve. Try everything, but that's another story. Could it be related one problem with this new one? Also my Vx's didn't pass the emission's test. Seem I have a big list. Any comment is very welcome guys