throwing codes???

the 01' gt i'm about to get is throwing a couple codes. I'm not positive which ones, but i know one has to do with the o2 sensors and the other with the intake.

the car has an o/r h pipe and i'm guessing it doesnt have mil eliminators on it, which i'll have to get to fix that code.

it also has a cai on it which is probably throwing the other code. what can i look for tommorow when i go over there to spend the day swaping parts from my current v6(redlinegoods leather boots and mach1 chin spoiler)??
 
Well, I'd run to autozone and have them read your codes.. it could be lots of things.. it could be emissions below threshold, lean/rich, sensor malfunction, etc. We'd really need the actual codes to help out more.