hey guys my 1990 celica Sx keeps breaking down on me.. its been at my mechanics for about 3 weeks now and they cant seem to find the problem. they think it might be a shredded wire some where in my car but they cant find that either... it doesn't break down straight away, it goes a fair distance then my engine light comes on in the dash then my revs start dropping then eventually it just stalls and wont start bake up again for a fair while... but when my car idles you can hear that my revs are e regular.. i know that mar car is old.. its only done 180,000km's i've spent over $3000 on it already just fixing problems but this one i cant seem to fix... does anybody have any idea whats going on or has ti happened to your car befor or anything?? thanks.