As the title states I have a 07 Maxima that suddenly won't start. Long story short, I came home and later that night I wanted to go out it would not start.

Car was running smoothly like always and suddenly no start

Digged around forums, found a lot of good things to diagnose but it got the point where I have absolutely no clue. I know it's getting fuel, spark plugs are brand new, all fuses check out, the only thing I've to check is spark but then again why would it have happened out of the blue.

I appreciate any help I can get

Won't start is overly made confusing by OP not describing just what 'no start' means.

As in, does the starter turn the engine (50 reason why not just there), and then going further, does the starter work but the engine does not light up to run? Two wildly different conditions with wildly different cures.

First question in response to such a vague post is..............how old is the battery?

And why would it happen out of the blue? Really?