what is an rear o2 sensor on 1995 Nissan Maxima

what does do? would this cause poor accelation and cutting off when stopped

Asked by for the 1995 Nissan Maxima
1 answer
http://repairpal.com/oxygen-sensor-replacement

Oxygen sensors are a critical part of your emission control system, and if one goes bad, it can cause serious performance issues. There may be a separate problem with the emissions control system, so a thorough diagnosis is a good idea.