My car starts right up normal at a COLD START , once i get driving and get is at optimum temp and park it for an hour. It has a long crank when its warm?? Only does it when warm. It’s def a fuel issue but im stubbed and need some suggestions? Has no cel or nothing.
(PARTS IVE REPLACED)
-spark plugs
-coils
-injectors (imo could be leaky injectors)
-crank sensor
​​​​​​-TB
-Fuel pump and fuel rail
-O2 sensors
- pcv hoses
- battery and alternator
​​​​​​-upgrade grounds
-starter

 

Usually it's a cam sensor that causes those kinds of issues. You have the HR engine so all the cam sensors are the same, I'd buy one OEM cam sensor, write on it with a sharpie so you know which one is the new one, then try it out in all 4 cam sensor locations to see if the issue goes away.

Why are you so sure it's a fuel issue? Did you test for fuel pressure?

 

edit: i missed that you've replaced the started already. have you monitored your a/f ratios while driving? try to log it and see what comes back after a drive. especially at wot. my pump was shot and it would lean out at wot big time.
it's really hard to diagnose stuff like this once you start throwing new parts at it.

old post: could also be the starter. my '03 G35 had this long crank after sitting for a bit that ended up being a starter that was on its way out.

here's my thread: Longer than usual crank times - G35Driver - Infiniti G35 & G37 Forum Discussion

 

I'm having the same issue and I'm about to begin the process of elimination by unplugging stuff when hot and see if I can find the cause.
Here is my thread: Link