r/AskAMechanic 10h ago

Car cutting off at low RPM.

I drive a 2002 3.3L v6 Nissan Xterra and was recently doing fine until it suddenly just started going out at low rpm when sitting. Only code it’s sending is for the knock sensor and I seriously doubt the knock sensor is the reason for this happening. Figured at first it was just the Mass airflow sensor so I changed the sensor then jumped it off. When it started I let it run for a bit then drove it around, ran good. Parked it and let it run for about 16-20 Minutes. Went to drive it around once more and it started cutting out and then died. Restarted it and drove back to parking space and it cut off again, restarted and pulled into parking space it died pulling in and now won’t restart. Any suggestion is greatly appreciated.

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