Just got an '89 Milano on the road and the fuel economy is AWFUL. I cracked open the AFM,sprayed it with tuner cleaner but the AFM looked good, flap moves smoothly. Funny thing is that exhaust is not sooty, no black smoke of any kind. You can almost watch the gas gauge go down. I'd guess 15 mpg, maybe worse. I have a pretty light foot so I was expecting better. Engine runs great from cold, some usual cold running hesitations, idle smooth. No fuel smells anywhere.