Check engine light on, can egr be the cause and how to test it. on 1996 Nissan Pathfinder

Cleared code and code and check engine light came back on.

by in Scotia, CA on January 20, 2013
2 answers 1 comment
ANSWER by , January 20, 2013
lets start with the code first. there are over 1500 possibilities Roy
COMMENT by , January 20, 2013
Code po58
ANSWER by , January 20, 2013
what is codes and poss egr ports plugged