Nissan Repair Questions? Ask a Mechanic for Answers ASAP
How old are the actual spark plugs? Did you look at them as well?Does it matter if the engine is hot or cold when this happens?
I am curious how old the spark plugs are. It's really quite possible the truck needs a good tune up and that there isn't any major problem. I only say this because so many times the simple stuff is forgotten because now they are running off computers. Things get missed.
Based on what is happening it seems like it could be tune up related. Fuel filter and a set of spark plugs. If not, then it sounds like a possible issue with the mass air flow sensor. I would seriously consider a tune first though.
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When it wont start right up, try unplugging the mass air flow sensor and see if it will start right up. If it does, it's usually an indication the mass air flow sensor is the problem. Without it being a consistent problem it's difficult to even try to run this test on it, but we need to start someplace.
Based on my experience I think you have a mass air flow sensor issue. It's probably just starting to fail on you. You can't run the truck with the maf sensor unplugged over idle though.
You could try cleaning the maf sensor although I don't see a lot of success with that, it might work because it hasn't completely ailed on you.
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Thanks so much!