That looks exactly like the Hilux system that I had in this morning, same dodgy fuse holders too. There should be a line fuse between the front end and the LPG tank solenoid for servicing purposes. Take all the fuses right out and test them with a meter, or just replace them with new ones.
Dodgy gas fitters also like using crimp terminals under the vehicle without waterproofing. It's quite common to see the earth point for the tank solenoid screwed to a thin panel with a small tek screw. These need undoing and soldering to a wire extension that can be earthed inside the vehicle, eg behind the light cluster. A tek screw should only be used into a double layer of panel. If outside, an earth point needs to be covered in a mound of neutral cure silicone sealant.Any inline connection in a wet zone should be soldered and securely covered in heat shrink or quality tape. Dodgy gas fitters use bullet connectors loosely crimped to thin wires, which of course is a recipe for future problems.
Oh and the "mess" is the injector cut wiring to stop the injectors firing, which won't stop the gas running.
Bookmarks