Tempfixit! Thank you so much for your response.
Yes, I do try to step on the gas pedal when starting. Nothing.
I had an oil change and engine flush (recommended by Nissan tech because of sludge in oil cap) 1000 miles ago. Also changed the air filter.
Had the fuel filter replaced about 10k ago.
Spark plugs were replaced 40,000 miles ago with platinum NGK plugs.
Very good suggestions though. I'll have to have someone look at it before I tow into the dealer and they slam me.
Distributor cap and mass air flow sensor a probable cause. Hopefully that's it.
Strong cranking but it just won't start now. Any other suggestions. Thanks.