Went to the track last sat, the battery bracket broke and the battery grounded itself out on the a/c...now when i drive my car, somtimes, not all the times...its seems to sputter, like the 02 sensors went out. Both 02 are working and still does it, somtimes it doesnt even want to idle, just wants to surge..Could this have messed up my tune?

 

Could have fried some other wires possibly. Look around.

 

i did, nothing looked odd or burnt

 

try to get a scanner and hook it up while driving and see whats going on.