Ive been having a problem for the past few days where the car will sputter and die out. It only happens on warm starts, never a cold start. And also it seems to be when its warm and has been sitting for about 15 minutes or more. If its been sitting for less than that, it seems to always start fine.

Seems to be decent in park, though the idle fluctuates more than it should. I give it gas and it seems to even out. Then put it into drive or reverse and the fluctuation of idle seems to get worse, and it will eventually die out in about 5 seconds. It feels like the tranny slips during this time because the car wont move half the time. But it also feels like a fuel problem because half the time you hit the throttle, the engine wont rev or it will be delayed. Whats funny is after it dies the first time, it always starts right back up and has no problems while running.

I havent changed anything in the past few days, so I dont think its something i did, I think its something failing.

I changed the fuel filter about 2 years ago. When you take off the gas cap, you can hear that there is a lot of pressure built up, but it has been like that since I got the car.

Is your Service Engine Light coming on??

No. Hasnt turned on in 2 years, and it was the egr valve.

2 years ago did cap rotor coil icm wires and plugs. 1 year ago did iac valve and calibrated it, though it was an oreilly part.

It still takes about 2 seconds of cranking on a cold start, and its worse the longer it sits. Priming the fuel pump (key/acc on 3 times before starting) doesnt help at all. That problem has existed since I got the car though