diagnostics

[thelinja]

Alright, I was getting tired of my engine light being on and decided to go to a Nissan dealer today and get it checked out.  Before, I went to AutoZone and they literally told me "we don't work on dem damn imports..." ok...  So nissan wants freaking 58 bucks to check it..Is there anyway I check it myself and read the code?  If I am able to read the code...how can I tell what's wrong?

[Jeff240sx]

Yeah.. what year do you have?  I know on S14s, you take off the passenger side kickpanel, and access the ECU.  The ecu is bolted in, so unbolt and remove.  
On the back of the ecu box, there is a little screw on the back.  Crap... this is in the Archive.
ECU Location, and codes (http://www.zilvia.net/f/cgi-bin/ikonboard.cgi?act=ST;f=6;t=10141)
-Jeff