ok, well this morning on my way to work, i noticed when i started my car, it sounded kind of weak, well didn't think much of it, just figured i was really tired, well then i went to the gas station for a pack of cigarettes, get back in my car, turn it on, it cranks, rpm's come up to about 1500, then shuts off...well this happens about 3 times, then i finally get it started and take the car home, grab the other car and come to work. while i was driving...no CEL, and everytime i stopped, my idle would be at about 500 (normally 800 or above, it was also kind of cold today)....any ideas on what it could be??? i was thinking MAS, but wouldn't that shoot a code at me (or at least supposed to?)....tonight, i'm checking the air filter, changing the oil (needs it anyways), and checking everything out, but has anyone else had this problem? thanks