[CREWZIN]

It's possible for the 02 sensor to get a sniff of bad gas or something that would cause it to throw a code and after a certain amount of time after seeing everything is OK, go back to normal and pull the signal that goes to the computer. I wouldn't worry about it unless it comes back.

Same thing happens when the code comes up which means the gas cap wasn't tightened properly. When is is tightened, the light will go off after awhile.