Tiberon engine jumping at stop

the engine jumps and vibrates when I come to a stop, can put in neutral and it stops, then shift back to drive and its fine, does not happen when I am driving. No engine light comes on. Just replaced an O2 sensor, per the test. runs fine, just when I come to a stop it goes nuts...I being female and car stupid need help. No one around here seems to have an answer. thanks:screwy: