thanks jimblake, everything went well with switching them, needed a breaker bar to get the old one out, is there a certain amount i should torque the new one? the light still wouldnt go off after i pulled fuse 13, is there a certain amount of time i need to leave it out, start the car with it out maybe? both codes pertained to the primary o2 sensor so being that i swapped it out it should have taken care of the CEL. i made sure i got the right part because i used my vin# to pull up the right sensor at the parts counter... thanks again for all your help