PR3 is throwing code 2 but i dont have the o2's pluged in. I thought no signal would not throw a code on obd0. Also ive been driving with it unpluged for around 260 miles and theres been no codes. Why would it suddenly throw a code after all that driving?
Thanks in advance.

Oh yeah.........and heres a pic so people will look at the post

 

pictures always draw a crowd. anyway, when u say unplugged, u mean the O2 sensor is out but u have a sensor plug in right??

 

Yes the o2s are in the exhaust manifold but the connectors are not pluged in.

 

yea..my car does that too...many times... i'll drive it for a while before the malfunctioning part light comes on...like i've had a broken knock sensor for way too long, and there's been many...many times it just doesn't show up on the obd...and then sometimes it does...

p.s. why do you have them unplugged? wouldn't you be running rich? and o2 sensors don't harm performance...but i could be wrong...

 

I have them unplugged because i haven't had the time to wire them up.
Thanks for the reply.