Ok here's the deal. I put fuel injection cleaner in my 95 coupe, thinking that the injection was dirty, so it helped a little bit. My problem now is the car will idle for about 30 minutes then stall. If you put into get it starts making this clinking sounds under the hood as you accelerate, this causes it to stall also. So my question is could it really be the fuel injection system or even the catalyic converter or anything else? Thoughts?