Thanks for the link Matt. Thats' awesome.

Replaced the PVC valve this morning and reinstalled factory tune. Still throwing the P0300 code. I guess I'm just about out of cheap solutions.

...and to kick me while I'm down, last night while online researching the issue more I got the dreaded "FBI Cybercrime/MoneyPack" virus and locked me out of my computer. was up most of the night and spent half of today getting that off my computer. (fingers are crossed)