Hey all. I hope I can get a few ideas.

Here's the lowdown... I have an '04 A4 1.8T. I had a couple of the recirc hard hoses fall apart a few weeks ago. I replaced the factory elbow coming up from the oil cooler, and replaced the uber expensive zig zaging hardline with 5/8 hose, which seems to work just fine. I then replaced the puck thinking that it was causing rough idle. Still nothing. I've been up to the dealership (I know a tech) who read my codes with their expensive gizmos. I have P0300~304 (most likely because when it runs rough at idle) and P1297, which I can't remember the exact verbage of the code. Their troubleshooting tree is kinda useless for this code. It told us to do a check on the maf, an alignment on the TB. After checking the electronics, there doesn't seem to be any major parts glaring at us. It does say something about a mechanical recirculation valve, is that the DV? Anyways, I'm at a loss...my car doesn't run well, and I really don't want to throw money at parts hoping to fix it. I'm about to do the N249 bypass to see if that is causing any problems, but I'm kinda doubting it. I had a code for lean bank 1, which also seems to be a byproduct from it idling poorly. However, the Audi computer says that it's running 9% and 7% rich (WOT and idle, but i can't remember which is which). Can anyone help me out with ideas? I've only had this car for a few months and I'm ready to drive it off a cliff, if it would drive me there.....[=(]

Thanks in advance for any help