Delete Vac pump? Unintended consequences?

[JLue]

I have a 1997 Suburban with a Heath mechanical waste gate controller and I am now considering getting rid of the vacuum pump. Is there anything else that uses vacuum that would be effected?

[DmaxMaverick]

The remainder of the emission system is vacuum actuated and monitored. Unless you have custom or F code programming to address this, you'll get EGR/EPR and WG related codes, which can cause defueling, default fueling, and/or limp mode. To get an idea of what you'll see, disconnect/plug the vacuum pump and drive it for a while under varying conditions.