ok, so my 1999 mitsubishi eclipse RS has been having some electrical problems lately there are two symptoms that i see, my battery will die after just a few days of sitting and my car will die while i am driving, it doesnt matter what gear i am in it will just die, all of the engine related systems shut down and then the only thing left on is the oil light, first i took my battery in and had it tested and it came back good, so then i pulled out my alternator which was a pain in the *** btw and took that in and had it tested and it came back good, so i don't know what else it could be. The guys at autozone said it could be my ignition coil, but im really sketchy about that. Also, when the whole car dies, it dies immediately not slowly, and it wont start right back up; it takes a minute or two then it starts no problem. So could it still be my battery or did the test for my alternator go wrong or am i completely off base. Oh and btw i was looking at some stuff online and this other guy with the same car had the same problem and his downstream o2 sensor was bad, and mine got scraped off by some peice of tire on the freeway, and i just got the new part to replace it, i know that those two things should not be related but is it possible? Sorry for all of the writing but i wanted to get whoever was willing to read this all of the info at once. Thanks in advance, even if you just read all this.