Turns out that the engine codes do not lie: Silver is being held up by a bare wire on the RPM sensor (probably my own doing with hooking the tachometer in and then having the yokels fix the dash light while I was gone, messing up everything under the dash), and the fuel pump relay is blown.

Two things I could easily fix myself, but I. don't. have. the. time. Better to just work the day instead, and make some money. And add this repair to the long list of expenses I have yet to pay.

But it's time to stop doubting Robin & my opinions about car trouble. We were both right on.