have a 2005 grand prix. The issue is first thing in the morning the car starts up. Now say I'll would go to the store, come back out to starts up but half way through the start the car won't start, like it's not getting fuel. But if I step on the gas mid start the car stays started but runs like crap for a minute. I tuned up the car new spark plugs and wire. I just dont know what's going on. Thinking bout changing the egr valve. Can anyone help me.