Car falling on its face around 2.5k

[WhiteFaleen2001]

Hey guys, I recently installed a fore return style fuel system on my car. Everything went well and then had it tuned by my tuner. He had to adjust this and that but when I got my car back on Nov 3rd, it was a beast. Now, these past several days, its seems to be running like crap. Sometimes it is fine, but 85% of the time now, there is some issue. As in, when pushing down on the throttle, once the tach reaches right about 2.5K, it feels like someone is stepping on the brakes. I have emailed my tuner and am awaiting a response. I also did some data logging with a handheld obd2 scan tool I have. I don't know what to make of the data, but I have added them as links below. I hope someone can tell me what looks off. Thanks!



http://textuploader.com/ovl0

http://textuploader.com/ovl9

 

[bigmoose]

The short term fuel trims look excessive on some of the points. Have you pulled your plugs and examined them yet?

 

[WhiteFaleen2001]

Figured it out....the nut that holds the Bolt in place on the F4i Fuel Pressure Regulator had come loose....which allowed the bolt to start unthreading itself, decreasing fuel pressure to the engine...I hope I didn't damage the car by driving on it. I never got into boost and barely got it above 2,500.