Here’s a link to the SVE Bulletin describing the Stationary Elevated Idle Control modes available on 2011 and later Superduties.
Note that this discusses PTO modes and BCP mode, and that BCP requires the use of a resistor between PTO REF and PTO RPM even though you aren’t using the PTO. My 2010 F450 didn’t require that resistor. BCP was enabled on it by simply giving the ECM a battery voltage reference on the BCP SW wire.
SVE BULLETIN Q-180R2I can tell you from experience with this that the ECM manipulates the engine RPM much more aggressively when BCP mode is on. In fact, I’ve never noticed much change in the idle RPM when BCP is off.
Also, I seem to recall reading somewhere that BCP mode essentially integrated into the ECM the function that used to be handled by that gray box that you always saw on airport shuttles that were based on the Ford E series vans.
:):)
