Thanks man, even at idle? If so then I'm adding a lot of fuel just for idle and low load cruizing. If I could crank up the fuel pressure and watch the LTFTs I would know for sure if + was indeed adding fuel.

Anyone else watching their fuel trims in this heat?

Edit: Downward I re-read your first sentence. My AFRs are at 14.7 as they should be in closed loop. So I am thinking it's just adding (?) to keep stoich, not a safety measure.