Ive been having some issues with one of my o2's since my header install, anyways we had a dyno day yesterday and i pulled 314/349 on a mustang dyno. On my way home from the shop i stoped and checked my codes. I am throwing a code for no input or something like that from my passenger o2, like its not hooked up or something. Not a big deal but I was just wondering if i am throwing that code, then that means im in open loop? And if that is the case then what effect will that have on my numbers?