Wow, a little over worried are you? 3 post in half an hour! lol
You need to check the right code, P1151 is not for all, nor a pair of o2 sensors.
Here it is:
P1151 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 2.
I'm don't remember which bank is 2, but if you search you'll find it. Oh and by the way, the list for all the CELs is off the main site
Linky to CELs 
