Not sure where this topic should go, so I'm starting here. The last time I tried deleting the system, my car's idle got higher and never really stabilized, so I reinstalled it all. I'm gonna try this again soon since I may have over looked some things, but also have a question. Why does the fuel regulator solenoid get removed from use for this? I get why the egr solenoid is taken out, but not the fpr solenoid. Thanks.

The fps is often deleted as it is only active during hot start up. Since the FPR reads pressure from the intake, the FPS allows additional fuel to be added during this time. This is very common practice and will have little to no consequences by removing the FPS.