I don't have any codes running the 140hp on mine. I would leave the wastegate connected. If u get codes still they can be disabled in the tune itself. What other tunes r u running and do u have any issues with lower power tunes.
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DJ Phoenix (my modded) Hi-1200/240Tow/75FS/80DD/100/140SS +Minotaur
ASE Master Auto Technician 
2001 Ford Excursion 7.3 4x4
Projects. 1970's Hustler and Max II Amphibious ATV's
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