it runs the same solenoid as the AVC-R kit, but a different map sensor
the map sensor in the powerfc boost kit is rated to 2.3kgcm2, but be sure to note that vacuum and positive pressure, so it peaks at 1.3kcm2
most map sensors when they quote rated to or max pressure usually only quote them as single rating, ie most people say ive got 2 bar map sensor, which actually means 1 bar positive boost and 1 bar negative boost (aka vacuum).
the kit is a loom, solneoid (same as AVC-R) and a map sensor (different to AVC-R) - its a generic denso map sensor
you re-use your cars existing boost soelnoid wires (GTST has them) and you plug the supplied solenoid into that
you run the map sensor in the back of the plenum like the factory gauge and then set on the hand controller target boost you want and duty cycle
it's a set and forget unit and that's all you need to do. there is no gear judge or gain.
when you enable the boost kit and connect it up
BOST sensor is enabled under ETC, SENSOR SW CHECK
BOOST is displayed under MONITOR
boost correction is used on the maps for fuel correction and temp (ie back out timing on boost etc) - im not %100 sure how all this works
fuel cut if boost exceeds target by 0.25kcm2
boost logging enabled in datalogit
so if you have your boost set to 0.85kgcm2 and your vac line is mangled or something fails and you run unlimited boost
the powerfc will see boost fly past it's target and cut fuel at 1.0kgcm2 as std protection
this will make the engine stall and you will go hmm why did the car stall
other controlls may beep and flash and some controllers won't do anything
neither will cut fuel unless you manually wired it in that way
i had the HKS EVC before the boost control kit and got rid of it as it had a fault
the HKS EVC was alright, messy wiring (installers fault) but the rest was OK
the powerfc kit install is easier, quicker and more nicer (less junk and wires) and its all via the same interface
did you know you can actually wire up the map sensor by itself without having the actual boost kit
so you can buy the loom seperately and the map sensor (must be the same) and plug it in and boost will be displayed
i did this on my car originally, ditched the EVC and then brought the solenoid
so i never brought mine as a kit, just as parts seperately - it was also cheaper in seperate parts (go figure)