Need help with Troubleshooting

[Hot SS]

i was driving last night home, and my SES light came on. So i took it to autozone and thy pull out the code and its the P1133. h02s-11 insufficient suitching. I put the LT headers last summer and i had this problem befor and so i changed the o2's with the z06 rear o2's. it only has about 1300mi on them....and now the same code. any ideas? plz help. thanks guys

[Blownone94]

ho2s 11 is bank 1 sensor 1 it is the upstream or front o2 sensor on bank one that needs replaced not the downstream rear o2 sensors.

[Hot SS]

lol i dont have the rears.....i delet them both in the back.....but it was the front one driver side....i unpluged and put it back in and after 4 miles SES light went back off....i have no idea what that was all about...