i have a x3 beta swapped accent, i havent been able to figure out why my o2 sensors are throwing cel's. i took to autozone and the codes are o2 malfunction. has anybody else had this problem and what fixed it?

 

Knowing which code(s) exactly would be helpful.

 

yeah which codes?

which O2 sensors are you using, what year is the beta, what ECU are you using?

give us some more info. i'm sure we can help out. I had the same problem at first with my swap and you know what it was? broken O2 sensor. could be a possibility...and without more info, can't tell you

 

dont recall what the code was i could go back and get again. but the explanation was bank 2 o2 malfunction. but i have thrown o2 cels since i first swapped. i have a 99 accent with 99 beta and matching ecu.

 

I had the same code being thrown last year because of the amount of fuel had damaged the o2 sensor. I bought a new one and that had solved the problem. It was the second o2 sensor I had to replace.