I had this code come out twice in a week. I had the pxx71 pxx72 so like an idiot I changed all 4 sensors(I had 120,xxx miles so i taught it was time anyways) but it ended up been a small hose from my intake. Its b2 s1 (driver side) so im really not looking foward to it

Is there anything else that can cause this code besides an o2 sensor

thanks guys it has just not been my week with ford