02 Grand Prix quick catalytic converter Question?

[cmccarty22]

This is my first post.

I like to say thanks for all the tips on here for changing you spark plugs and wires.

Now my question.
I have 02 Grand Prix 3.8L with 56k miles on it. It sat for a couple of days while I did the front wheel bearings to get the ABS light to shut off. When I started the car it ran fine for 10 minutes then the car would not accelerate. No codes came up. So I drove it for another day still no codes. So I changed the Plugs wires still no luck and still no codes. I am thinking of changing the catalytic converter any tips would be great.

I was wondering if anyone did a walk through on replacing this part.

I started soaking the bolts in liquid wrench

Thanks
Chris