Originally Posted by 98CoupeV6

Uh what? Did they tell you that before or after they charged you $60 to do something you could have had done for free?

I have a friend who works at a used car dealer. He hooked up an after market scanner that could not diagnose the problem. When we gave it up, I went to start the car and it would not start. It just wouldn't fire. Luckily my friend knew what had happened and he replaced a fuse in the fuse relay box. Apparently using an after market scanner will cause a fuse to blow.

How exactly are you determining it's a fuel system problem? I would imagine it's an idle air induction problem. Premium gas won't do a damn thing, all gasses have the same types of detergents. All 91 or 93 is going to do is reduce your power and increase carbon build up because the gasoline is going to be too resistant to detonation.