My (novice) understanding is that it cuts the fuel being put to the cylinders if there is too high of a back pressure.
Not sure about just unplugging it. I can't find it now, but I read in a forum somewhere that you do not want to
just unplug the sensor, but that unplugging the valve is not detrimental.
If yours seems weak and sluggish, like mine was, it might be worth a shot. I can now feel and hear all of the mods that I have done.
It has been night and day. Before, I hated being at a light, because I new it was going to stumble and chug, Now, I find myself looking
around for another PowerStroke to dance with. I kid you not.
I only ordered the EBS Eliminator, and I unplugged the pedestal valve. So far, no code has been thrown.
I am now most worried about not having a waste gate. If I let it, it would over 40PSI, and that is not good without
stronger head bolts and other mods. And, of course all of the heat.
Again, this is my first rig to do this much stuff on, so I am learning as I go. I'm sure MANY people can chime in and offer
some more solid insight. The dually I had before this was bone stock, and other than a fuel canister leak, I never had an issue
with it.