If the car sits overnight it won't start in the morning
I have 08 Audi s4 when the car sit overnight it will
crank but won't start up if you keep playing with it
for about a hour or so it will eventually start what
could that be? Please help
Could be a faulty fuel pump or a part in that system. Could be a defective cold start injector. Might just need a really good tune-up.