Last night heading to town my truck through a CEL. It said o2 sensor stuck open in bank one. And that I was running rich in bank one. I cleared the code and kept going and it never popped back up. Any ideas?

 

Anyone have any ideas on this? It did it too me again, er ugh me too. But it only did it in july and now once again randomly 3/4 of a year later.

Also my gas mileage is HORRIBLE right now. But that probably has something to do with my plugs having 101,000 on them . Im scared to change them

 

Nobody?

Why is it that I always have the problems that no one can answer? I.E my broken windows thread, lol.