GP Starting problem

Can anyone out there help. After $300.00 has been spent they still don't know what is wrong with my car.

I have a 2005 Grand Prix 97,000 miles on it... When you start the car after overnight rest it is fine. Once it gets warmed up it won't always start without giving it gas.

ANY IDEAS :banghead:

Any CEL (check engine light) on and if so, what codes are stored?

what have you done so far that hasn't helped so we can better help you find what will?