Pontiac Repair: p0131 oxygen sensor, vacuum leak, oxygen sensor

Question
what can i do to get rid of this problem

Answer
Hey Terry :
what year and model car is this? usually it's a bad sensor but you could have an engine that is running lean from plugged injectors,plugge fuel filter or a vacuum leak. A bad ground wire connection going to the engine computer each model have it's own quirks and things to look for.