My SES light has been on for a while and I heard that sometimes a blown fuse for an electric air pump can cause the light to go on. first of all, does the 2000 Pathfinder even have one of these, and if so, which fuse is it? Any help would be appreciated because I am sick and tired of the SES light going on, then going off for 2 months, then coming on again with no apparent reflection of performance. Is there any way to reset the light myself to see if it comes back on? I realize this could be a result of leaving the gas cap too loose and I don't feel like taking it to a mechanic just to have him tell me that. Thanks.

Just go to Autozone, they'll read the code for free.