Back in September, I had 2 codes, which are both related. They are:
P0105 and P1105

I never fixed them and just ignored it.

So...I haven't driven my Maxima in about a month. I started her up today and took it for a spin. I passed an Autozone and decided to stop by to pull the codes, to see if I still have the same codes.
I still have those codes, and 2 new ones

P0400 (EGR system fault) and P0600 (AT Communication Error)

I have no idea what these mean, as I am not mechanically inclined. What do they mean? And typically, are they costly/trouble?

 

Check the link below concerning P0105

http://forums.maxima.org/5th-generat...110-p0105.html


Use search for the rest of the codes.they are all talked about on the forum.

 

all the codes and what they mean is in the stickies and in the FSM.