I just put an obd1 b16a into my 00 civic ex and did the whole obd2 conversion and all, got it running right but its throwing a code for a bad bottom o2 sensor. I replaced it with a universal one that I'm pretty sure is wired up right. The code is still there and I cant figure out why. I have to get this fixed a.s.a.p. cause I need to get emissions done on it so I can get a tag, etc. Anybody have any suggestions?