o2 sensor light

I was wondering if your check engine light should go on when the O2 sensor is removed… I removed mine and started the engine for kicks and found that it ran about the same and no check engine light. I since have replaced the O2 sensor but I just wanted to make sure that the computer was working right


i know that my check engine light was coming on quite a bit …then when i went to hook up my air/fuel gauge …i found out that my 02 sensor was unplugged …i plugged it in and since then my check engine light hasnt come on…

I wonder what the matter is, I guess there must be something wrong with the Computer?