I have kooks LT high flow cats and corsa. I keep throwing codes 0420 and 0430. (catalyst system below efficiency). I know it has to do with the o2 sensors so what can i do to get my car to pass? I erased the codes but then the emissions machine knows it. Drove it 100 miles to try to get it to reset and nothing. then the light came on again. Is there something i'm missing here?maybe something to trick the computer? anything?
Thanks.S
Thanks.S