Ls3 fpcm bypass?

Using dual pump totally seperate form the fpcm how do I bypass it or delete it so I won't get the check engine light ? Currently using the pump on cable for my fore dual return system ..do I just tap into it or splice it right now is spliced using hptuners and there is no option on diagnostics to turn off.. 2010 Camaro ls3

I haven't done this myself however a quick search suggests that you can set the fuel pressure - Pump Type to 'fixed' and this will eliminate the speed control element. You can then just run a conventional relay off the FPCM output from the ECM.