I posted this on another forum, with some mixed thoughts.
I then found this forum specifically for pathfinders and thought maybe I could get some other opinions.. so I'm a noob to the forum, and greatly apprecaite and thank everyone who can help me.
In short, I have had no troubles with my 01 LE (85,000 miles). However, the other day in a snow storm I suffered momentary power loss (maybe 10 seconds), the SES light was blinking during the loss, I was just pulling over when power came back, the light went off and everything was perfectly normal for the next few days.
I have a scanner that showed a stored P0420 - Cataylst level below threshold. I cleared the code, no problems since.