[QUOTE=abgwin;3117050]Update: testing the cutoff switch with a vacuum hand pump. It does kill the engine, but doesn't seem to hold a vacuum on its own.
Also discovered that the door lock system isn't actually working: the vacuum reserve must be in good shape, as it held up for several days before slowly giving up.
A few (bad) pictures of the lines under the hood:
What is the yellowish hose with the rubber connector going into the firewall in this pic? I have the black rubber connector with no hose coming out of it.
Zack