I figured I'd post you the info on each code you have. The slipping is due to the code being set and you're in an emergency program. Hopefully that will help ya figure out whats wrong, but here's what I'd do:

First, what color is fluid, if not red flush it (it'll cost you about $30 to diy)

Secondly, how's your speedo working? Is it accurate? Easiest way is a pace car, and verify results within 5%.

Thirdly, Try checking any connections you can find (if you take off your air cleaner box and intake hose you can get a pretty good view from above.. This takes about 5 minutes to take out once you know how to do it.)

Reset the codes and see if it goes away after each step. If none of the above work, come back and you'll get to have some more fun!

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If you're not driving it "like its stolen," are you really driving?