Codes 25,26,51!

[justin1642]

i was hooking up my air/fuel ratio guage and everything was fine until next morning on my way home from work the engine light came on and i did the diagnostic and it gave me codes 25 26 and 51. 25 &26 are lean and rich and 51 said something about a/c so i was wondering how to get rid of these codes.
i didn't do anything except for putting a wire in the o2 sensor clip to make the guage read thats all i did to the engine so i don't know why i'm throwing codes. the guage says i'm running rich. the car runs fine same power and everything i don't know if its running a little hotter or not cuz it says it's fine on my temp guage so if anyone can help me i would greatly appreciate it thanks.