Good to know... 
I guess i will need to dive into the UPREV i purchased last year to understand how to clear codes. I have flashed one tune but I have not really explored all UPREV can do for me such as disabling codes.
Given there is no power loss, even with the codes, I am going to go ahead and disconnect the system. I will remove the components once I have the codes cleared
Thanks to all who contributed! 
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2011 Nismo with...Stillen Gen3 CAI, FI LTH's, Stillen CBE with Springfielddyno rear section. Stillen under drive crank pulley, UpRev, and LW flywheel. Penske 8300DA Valved by ANZE, SPR FCA's, Stillen F/R adj. sway bars, Enkei PF01's, and Hoosier A6's
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