Postby smj999smj » Wed Jul 10, 2019 7:33 pm
You should have it scanned for trouble codes. A possibility is a bad crank position sensor or a bad cam position sensor (there are two of them). They can fail as they heat up, cause a no spark condition, and then cool off and start working fine, again. They don't always trigger a trouble code. Also, if replacing, it's best to stick with Hitachi or genuine Nissan parts.
Some other things to look at: sources of unmetered air leaks...like at splits in the rubber ducts of the air intake, worn spark plugs, dirty MAS hotwire, rodents nests in the air box and/or low fuel pressure.