 Bought this Xterra used and it ran ok for several months.  Then started experiencing strange electrical issues.  First the fan for the heat/ac went out and was causing fuses to pop.  Took it to the dealership and they replaced that.  Then a couple months later my reverse camera and reverse lights went out along with my fuel sensor.  Computer showed a high voltage input on the fuel sensor.  So I took that in to get it replaced.  Took the dealership 3 days troubleshooting the issue before they sent me on my way.  Then today I started the car and pulled out and found the check engine light was flashing at me and there was a noticeable miss.  I pulled over and stopped and turned the car off.  I checked fluids and everything looked ok.  Turned the car on and headed back to the house and there was no miss nor check engine light indicating that anything was wrong.  Going to have to take this piece of crap into the dealership again to have it checked out.