running engine with rich fuel mixture for long time

[xagna]

I just found that the O2 sensor cable was cut and resulted in open circuit. In order to fix this I have disconnected the O2 sensor connector. How much damage will running rich on fuel mixture inflict on the engine?

[jtpaintballwdp]

You will mostlikely notice a performance decrease down low because of all the extra fuel.

[JigokuZ]

It's won't hurt the engine other than fouling out plugs... and messing up Cats..

[sncs14]

and maybe some carbon buildup in the exhaust ports depending how long it was like that.

[xagna]

Fixing the coaxial wire of the O2 sensor will take some time because I never have done it. Hope nothing happens to my engine.

BTW Why is it that the engine feels more powerful? I did 0-60 reading a few weeks ago when I learned that I was getting bad milege. I came out 7.8 seconds.