*facepalm* Stupid EFI vehicles.
I guess it's a good thing I procrastinate buying new parts... I could have bought the fuel pump and had it in by now, and it still wouldn't have worked.
I put a manual for my new lawnmower in the truck yesterday, and lo and behold, there's the inertia switch, red button staring at me on the passenger side inner kick panel.
I push, it clicks, I slap the door and laugh at myself.
When I violently removed the passenger side plastic kick panel cover, I tripped the switch. Right after that, the vehicle wouldn't start. Go figure.