Car will only start when cold. I replaced crankshaft position sensor
changed out both cam shaft position sensors as well

no check engine codes come up
the only code I have is a coolant temp sensor that I need to replace

I go to start it when cold and it starts right up
but if I turn it off then try to turn back on it will just crank and crank at times it will start sputter a bit and turn off

fuel pump?
Anyone deal with this issue?