Issue, Trouble Starting

[speed3 britz]

So for the last few days my ms3 has been having trouble starting every once ina while. Sometimes fires right up, other times it stalls real quick or cranks a few times before firing up. Im pretty regular on all my maintenence and this is my dd of 80+ miles a day. I have a had a CEL P2097 (Post catalytic system bank two running too rich) for awhile, but hasnt affected the drivability at all, light comes on and off. This have something to do with it, and if so, why now? (uhm) Its got 67xxx miles on it so far. Only mods I have is what you see below in my signature.

 

[MikeHTally]

I take it the motor turns over easily? How many miles on the plugs?

 

[speed3 britz]

Yea the motor turns over fine, easy, no difficulty. It just doesnt wanna start right away sometimes. As far as I know, original plugs. Was gonna try do a seafoam treatment, and maybe look get new plugs?