Any fuel spill,storage or leak can cause fuel odor inside the car.
no it shouldnt
Sounds like you got a leak somewhere - get your car up on a lift and check as much as the fuel line as you can see.
A fuel pump relay switch can cause your car to stall after starting. A malfunctioning fuel pump relay switch can cause your car to not start at all.
Bad fuel or water in the fuel or clogged fuel injectors might cause a car to run with less speed. This might also happen if the car has a problem with the fuel pump.
cause it has no fuel.
one possibility is that the fuel pressure regulator is leaking therefore fuel draws through the vacuum line in your intake manifold and causes a rich fuel mixture, that would cause a noticable fuel odor and hard starting.
Check for fuel leak Check or replace charcoal canister
It means you may have fuel leaking, which is not a good thing.
Rotted fuel lines.
Contaminated fuel could cause a misfire.
Yes, if it is clogged.
If you're talking about a fuel pump, then yes, a failed fuel pump or fuel pump relay will keep a fuel-injected car from running.