N2O No Likey O2s?

[Ryan]

Looks like running the nitrous has killed a downstream O2 sensor. I haven't pulled it out yet. But that's what the codes point to, and talking to a buddy said he's seen it a bunch. WTF causes that??

 

[GR8WHITE]

Sometimes the extra fuel in the mixture doesn't get burned all the way. It can cuase probs there. Sometimes the exhaust temp. gets too high for the O2 to read correctly.

 

[Ryan]

Thanks Fishy, but pulling codes/ talking to my Ford guy pretty much confirms what I oringally thought.....bad cat...........

 

[Colt .45]

Iv'e alrady went through 2 front O2s.
Over $100 for the 2. grrrr