Hello, I just replaced both o2 sensors the 2002 Grand Caravan V6 with 80,000 miles on it seems to be running better. But now a new problem just after I replaced the o2 sensor is happening. Every time I stop the car it seems to want to quickly up-shift and that never happened before.
Any help would be great. New to this site.

 

Welcome to DF
Have you had all the modules ck for any stored codes.