Car: Loud Sound, No acceleration?

I own a 2008 Honda Accord Coupe. It is 200 miles from hitting 100,000 mi.

I was driving it earlier today and it drove great. But then I stopped to get gas, filled it with premium as normal.

As I pulled out of the gas station and hit the gas pedal, my car sounded like I just put a ridiculous muffler on it. My car had a deep growling roar to it's acceleration now, but my power was bled. It takes forever to speed up and when I punch it, it doesn't even try to shift. (It's an automatic)

I now have a "VSA! Is OFF" light and check engine light. Anyone have any idea? Bad gas?

Added (1). Yes, I'm positive it was 93 octane premium fuel.

Shut up alcerator

What's the code on the check engine light? VSA shouldn't have anything to do with it. It sounds to me like it might not be shifting out of first gear, which is a problem.

I doubt it was bad gas, but are you certain you didn't put diesel into it? You'd be surprised how many people do that. You might just have to tow it to a shop to get it taken care of.

You can take it to a simple muffler shop and ask them to put it in the air for you, and give you a quote on it. It may simply be the catalytic converter has blown out or fallen loose (or even off) and the O2 sensors damaged or missing as well. Thus the check engine lights. Most muffler shops will do the inspection and quote without charging you, but be ready for sticker shock at the price of the catalytic converter… They can be expensive.