code P0141-secondary 02 sensor replaced and still experencing same problem

I had my codes read at Honda dealership . One of the codes was P014, and i was told the secondary 02 needed replaced. i was told that replacing the sensor would stop the car struggling to accelerate, which i had been experiencing. On Friday i had my secondary 02 sensor replaced, check engine light was off. I drove it for about forty miles Friday. light remained off and car ran smooth. I woke up Saturday morning drove less than a mile check engine light came back on, when I made the next turn after coming to a complete stop the car started jerking on acceleration. this is the same problem I had before having sensor replaced. what should be looked at now?