Hey everybody, So today i was cruising on the highway 95 ish,

and out of no where I get a CEL. I drive over to autozone to have them read the code. The thing said Bank 1 running rich...? I think it means cylinder 1 but could be the manifold runner #1... I dont know.
I've had an Injen CAI along with IMG and Throttle body Gaskets for about 6 months now with no problems. Just wondering what could be causing it to run rich all the sudden. I'm just glad its nothing major... Any thoughts?