Hot no start

Check wiring harness at rear of engine by stud it may be chafed through causing the problem. If it is you'll have to repair it. Then check fuel pressure with a gauge auto parts rent it. And clean throttle plate on both sides and iac hole with choke cleaner.

When the problem is ongoing, if it cranks good but won't start, have a helper crank it while you visually check for spark at the spark plugs. If spark everywhere, use a gage and check proper fuel pressure. Also check for fuel injector pulse. Do testing with engine cranking. Don't crank the starter more than a few seconds at a time, let it cool off. Battery has a full charge.
How long since a tune-up? The basics for a rough idle, check for a leak of some kind, fuel--egr--vacuum leak, something of that nature.
Check your coolant temp sensor if temp related. I can only make suggestions.