No, it does not. When i manually change it to 0 while the sim is running, it stays that way even if i restart X-Plane, but the persistance still does not work correctly. I quit X-Plane with bat1+2, alt1+2, avionics and strobe turned on, tank selector to l, and the engine running. When i restarted X-Plane, All the switches (including ice etc.) where turned on, tank selector was was turned off, and the engine did not run (throttle + mixture where at zero).
Also the static elements (except the plane cover / tiedown) where enabled, although i removed them prior to restart.