I have a 2001 Nissan Frontier with about 45,000 miles that has a service engine soon light on. I have checked for codes and found P0402. A little research turns up "EGR Flow Excessive". Visual inspection does not reveal anything. I haven't had time yet to check the functionality.
Anyone know anything about this? Is it still under warranty? Is there a bulletin addressing the problem? Any help is much appreciated.
Thanks, Larry