Hey Scotty. So I have an 05' Pontiac G6. I haven't been able to figure this one out. I would say once out of every 25 ish starts my car will crank but will not start unless I press on the gas pedal a little while it cranks. But it only happens once about every 25 starts give or take. Once I give it the gas pedal it will immediately start. And if I don't it will just keep cranking and cranking. Other than that all of the other starts are fine no problem. No drivability issues either. Any ideas?

dirty injectors, try this video https://www.youtube.com/watch?v=bKGI9N_yWd0