I recently got a f13 cam, and today i took it to get an off dyno tune(I will be gettin it dyno tuned in about 3 weeks when i have the money). But anyway today my check engine light came on and i jsut read the code and it said system too lean(bank 1), i cant remeber the code number but i can go outside and read it again to get it, if that will help any. Is this somethin that i need to go back and get re-tuned, like they cut the fuel too much maybe? Im going to call the shop tommarow, but i really want to find out tonight what could be causing it to throw the code, im thinking its in the tunning, just because the code came up not too long after i got it tuned.