my check engine light is lit up on my Nissan Pathfinder, what does that mean?
The check engine light is a indicator that the vehicle computer has found a fault. That said some time its simple like an O2 sensor or the gas cap is not tight. Just go to a dealer and they can tell you.
Mine is too and I was told it was a "knock" sensor... About 3 hours of labor to repair and a few hundred dollars.. Nissan made a great car but this sensor was placed at the wrong place for easy access.
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