im sure youve read this:
http://forums.maxima.org/showthread....ighlight=P0430
Seems like it will help the problem. Go for it, watch out for an o2 sensor going bad next. I need a new heated o2 sensor or a resistor and ive only had my sim in for 3 months. Currently have P0154, P0152 and P1168. Others have had better luck though. Hope all goes well.