I have a 90 teg motor in my crx, and the last couple of days, I have been getting a code 1 (O2 sensor). I just replaced the sensor when I put the motor in last June, so the sensor shouldn't be bad. All the wiring seems to check out too. The first time when the computer threw the code at me, the car ran terrible and I had no power whatsoever. This time, the car ran ok, but I'm still a bit confused. (btw, i reset the ECU each time after checking the wiring).

Any help or thoughts on this?

Thanks