I threw the following codes and its starting to make me mad. Any ideas would be helpful.

P 0191
P 2121
P 0237
P 0192

 

there is a list of codes under the tech facts on this website only one not on there is the 0191 code but the others are 0192 rail pressure sensor low, 0237 turbo boost sensor low, and 2121-pedal postion performace. Sounds like your mods having something to do with it.

 

Yup, I would check all your connections for the Quad box first...