I had my tune dialed in to LTFT -5 to 2 througout the whole range. Now after not driving the car for two weeks due to the rainy Atlanta weather, the tune is show LTFT in the area of 10-15.

It's about 15 degrees cooler now, but can that make that much of difference?

Is it possible my O2's are reading different then when I was driving it every day and tuning it? Can sitting for a couple weeks make it read real lean?