Just bought a 1999 eclipse gs with 146,000 miles on the 420a. Since i bought it, its had some cold start and idling issues. At first try, the car just cranks for a second, then it starts firing randomly, like sputtering, but not enough to start it. after maybe 5-7 seconds it will fire up and start but will run rough and choppy for maybe 30 seconds, then the idle smoothes out and it will run totaly fine after that. also if i punch the gas quickly while cold the idle drops to a near-stall level and the car "huffs" like it got punched in the stomach. I ordered a new fuel filter for it but wont have it til monday. what does this sound like to you? thanks