Note this guide is an approximation and may contain errors. Caution should be used when using the assumptions made here. The parameters listed here are for BA/BF only, FG uses different parameter names. A separate guide for FG will be added later. Boost Control The BA/BF/FG use two main modes for boost control, open loop and closed loop. FG also uses a third addition which is feed forward control based on RPM. Initially they operate in open loop mode. This is similar to an afterma