I have a 1990 Toyota Corolla and after it runs for about 5 minutes and come to a stop, idling, it will be rough idling. And 3 days ago, i was at a light and it was ok, but when I pressed on the gas, it cut off on me. It started back up and got me home, but am afraid to take it out again. I know this could be a lot of problems, but could it be something with the fuel delivery (filter, pump, etc.)? No check engine light is on and I have started it again, just in park and having it running and after 5 minutes or so, again when i give it gas - it sputters. PLEASE HELP!