Whats going on?? I just installed the white(o2) wire, and black (a/f) wire on my ecu and it was fine when I test ran it around the block. It took a minute for the a/f to come up, but it worked.
Now this morning coming to work, my check engine light came up. When I started driving from the stop light, my car had a delay in acceleration. Does this mean that my car is in limp mode? Does this have anything to do with my installation of the two wires into my ecu?

THANK YOU FOR ANY INPUT!!!!