Shuts off after driving a short distance

Hi all,
after starting engine and driving for one or two km, engine turned off automatically. Some times when restart again it has come on, but most times no and I have to wait up to twenty minutes with a lot of restarting. Another one or two km, engine will off again!
fuel pump has been replaced.
relay of fuel pump is too hot ! Also relay of ignition switch !
scanned but no fault code.
when I turned ignition switch to on (without engine start) check engine light should be there, but most of times it is not on, only some times.
can you help please?
thanks