09' Oxygen sensors ?

[ilikemy3s]

09' AWD Equinox .. how many Oxygen sensors are there ? I am getting a PO133 and a P1133 both pointing to the Bank 1 Sensor 1

 

[corvairbob]

2 front and back of the cat if it is the 2.4L it sure sounds like the b1s1 02 really has failed slow responce and switching. they are not real expensive to if the live data show it to be switching from low to high but jus tslow to do that i may have failed. or it could be contaminated and ust failed good luck let us know