Ok my car is throwing 2 codes, codes 151, and 153, which are: (151)Upstream Heated Oxygen Sensor circuit out of range - Bank No. 2., and (153)Upstream Heated Oxygen Sensor circuit Slow Response - Bank No. 2. I assume this means an O2 sensor is dead, is it more than one or does one sensor throw 2 codes. I also noticed my gas mileage dropped dramatically (17mpg on avg). Does anyone know the cost of a new O2 sensor? Or even better, is there a way to "fake out" the O2 sensors so I never have to replace them again?
Thanks!
