SC starting issues after driving for a while
 

it seems that in the morning, after a night of rest (!), the car starts just fine

for a couple of times now, after driving for a few hours, when I try to start the car after a while, it turns but no ignition. the engine just wont start.
I have to wait for a while, then it starts.

any clues ?

oxygen issue ?

Sounds like a residual fuel pressure issue.
Got a fuel pressure gauge?
Could be the accumulator, fuel pump check valve, or the valve in the fuel distributor.
Do a search on "warm start problems"

thanks Pete,

no I don't have a fuel pressure gauge,

I'll look for warm start problems

+1 on the fuel accumulator.

+2