Faw V2 doesn't start while being under sunshine for an hour or 2

[pwuser162237189920]

I have faw v2 2020. Winters pass by charm.
As soon as summer starts it doesn't start after sitting under sunshine for an hour.
Engine cranks properly. Battery is at 100% but car just don't want to start as if some sensor is stopping it.
Got it checked from dealership, several mechanics, by obd.
No one is able to diagnose. A GENUINEEEEEEEEEE ISSUE
I let it cool by opening all windows for about half an hour to get it started.
Anyone have any clue?

[pwuser165176643628]

Must be a relay or the pump it self heating, ask @xulfiqar he's the goat

[Xulfiqar]

Have you visited a legitimate proper workshop or just the dealer and random electrician?

Does the ecu actually energize?
Does the car have a tracker?
Does the ecu command the fuel pump?

There are a lot of parameters that need to agree for the engine to start.

[pwuser162237189920]

@xulfiqar Dealership & random electricians.

Car have tracker.
And the most important point. Car takes too much time to unlock from remote. Like good few seconds. Don't respond swiftly as normal when this sunshine thing happen.
Sometimes i have to unlock it with a key as well.
Where should i get it checked?

[Xulfiqar]

Your car has a bcm (body control module) that handles a lot of functions including remote lock and also engine start.

Either your tracking co. Have installed garbage equipment or your factory bcm is faulty.

Has someone tried to check the alternator by disconnecting the battery? Or has it suffered a really worn out battery?