The code reader says its the manufacturer fuel air mixture, I don't see an airflow meter on the car. I checked my chilton manual but this code is not listed and I did clear the error and change the oxygen sensor but the error comes back. Any suggestions ??? this is a 1998 accord ex

 

I found a list that says that code is for the heater circuit of the primary O2 sensor.

Since you already changed the sensor, try checking the circuit. I sorta remember that on 1 of the engines, that has its own fuse.

 

yeah the code is for the primary o2 sensor, is that the one you replaced or did you repolaced the second one.. also is it s a honda o2 sensor... if you already did that then is a wire problem from your o2 sensor to the computer not communicating right check your wires..