Long start only when warm after sitting a few hours?

I have seen a weak fuel pump, or bad engine coolant temperature sensor cause this problem, let go over this guide first to help us with the easy stuff then we will do a deep dive into the problem.

https://www.2carpros.com/articles/engine-cranks-excessively-before-starting

When the engine is going to be a hard start let connect a scanner to see what the engine temperature is saying.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Also, let me know if there are any codes. Can I ask if you have serviced the throttle body, this will cause a hard start as well, try opening the throttle slightly when cranking to see if anything changes.

Thanks for the guides. I will check the coolant temperature sensor.

No codes in it. This was a known issue when I first bought it about 5 months ago, and I have cleaned the throttle body since then, but it did not change the long start issue one way or the other.

When you say to open the throttle slightly when cranking, do you mean to remove intake boot and manually open the throttle plate by hand a little bit...or do you mean to push on the accelerator pedal slight when cranking?

I would push on the accelerator pedal slight when cranking and see what happens. But since you serviced the throttle body this may not be the issue. I would pull the spark plugs to check for wear and the color, you may have one or more that is a dark color while the other are light, this is telling us you may have a fuel injector that is weaking, when the engine does start do you have black smoke from the exhaust pipe for a short time?