Will it make the car sound like it is missing or make it idle funny?

 

yes, it'll make the car run extremely rich after it is warmed up and give it a shitty idle

 

Cool. Its a hatch w/ a gsr motor, and the idle is not completley right. It isnt bad, but it idles kinda like this (pathetic attempt to TYPE the sound):

baaaa ba ba baaaaaaaaaaaaaaa baa baa baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ba ba baaaaaaaaaaaaa...

like, every 2-3 seconds it kinds sounds like it misses, but not that bad, so i know it isnt a prob w/ a cylinder firing.

 

yep, sounds about right. I have 2 unhooked o2's. I hear the same damn thing. Fixed and no abnormal sounds