little update:
After getting side tracked with a few other vehicle purchases, I was able to get back to working on the car. Installed a new LPFP as well as some other parts (front wheel bearings, water pump, thermostat, and one of Iaknown's intakes). Took it for a 150 mile test drive and thought all was well. Had the wife with me so I didn't get on it very hard. However today on the way to work I pushed it a little bit and it popped the same reduced engine output message.
Codes were as follows:
3EED power management closed circuit protection
4AD5 DDE zero quantity adaptation injector cylinder 1
4560 DDE rail pressure plausibility delivery controlled
ideas?