Spark plug gap is fine on all plugs. I rented a scan tool from Murray's Auto that gives real-time values for certin sensors in the car everything looked ok. The only things that I noticed were the following...

Absolute TPS Position at idle 16.4 (what is this supposed to be?)
Engine Load at Idle ~ 23-26 (no AC on) (seems high)

Can anyone shine some light on these readings?

Also, is there a way to test to see if the cat(s) are bad and which ones (precat vs. main cat)

Thanks
!!