i have a 1995 Impreza. It runs great no missing out just runs smooth. Then all of a sudden it dies while driving. we put on a mass air flow sensor, two weeks later did it again, put on different computor, one week later,did it again, put on alternator, twodays later, did it again, put on knock sensor, three wks later did it again. then we discovered the fan wasnt working. we fixed it with a toggle switch to turn it off and on. For six months it did not do the dying thing. then a couple wks ago. same thing!!!!We assumed the computor thougt the car was getting overheated and just shut down, but dont know does anyone have any ideas?????thank you!