hey guys i have a 91 integra with an obd0 b16a with a pr3 chipped computer. my car has recently started sputtering after it gets warm. i have changed plugs, wires, cap, rotor ignitor and cannot figure out why its sputtering. my alternator recently went out so i took my wifes alternator off her DA and put it on mine and since i did that, everytime i hit about 6k my battery light comes on. mind you its a brand new battery. It only sputters like that when its warm someone please help!!!!