Car throwing some codes..

[Bosshammy]

Ok so after the first code a week ago went i let the car sit over night and reset and it was fine for a week but just the other day it threw the code p0131, so i reset it again and just this morning coming out of the driveway it threw p0131 AND p2251 can someone give me ANY insight to this i really cant afford to park my car and i have minimal time to look at it. any help would be amazing

[stevenma188]

P0131: O2 sensor circuit low voltage (Bank 1 Sensor 1)

P2251: O2 sensor negative current (Bank 1 Sensor 1)

Basically, your primary O2 Sensor has stopped working. More than likely you will need a new O2 sensor. If you leave it, your car will drive around in limp mode, running super rich.