Cel!
 

I just had the agency power pulley installed at a shop nearby and when I got my car back the CEL was on. Everything seems to be running fine and I dont hear anything strange. I had my friend rev the engine and the belts all seemed to be fine. Anyone know anything that could be wrong? Would the pulley normally throw the CEL?

You might as well here this from a friendly voice than a harsh one. Use the search button above to find the answer. This has come up before and the answer is out there. Sorry, I don't have the answer off the top of my head. This is something I am likely to add to my car and I will have to do the same when the time come.
Good Luck.

I've reset the KAM and unplugged the battry and it brought up the traction light now but no more CEL.

After disconnecting the battery to clear the PCM you always get the traction light. What you need to do is turn on the car and turn the steering wheel all the way to the right then all the way to the left and the traction light will go away.

P.S. doesn't matter if you go right or left first.