So, my recently purchased 1999 F250LD factory bi-fuel LPG/gasoline truck had the LPG system not in use. I went to remove the compuvalve, and started the truck a few times as I was unplugging things (all connected to the compuvalve). After getting it ALL off and removed, the truck won't start. Does anyone know a) what needs to be connected for the truck to run on gasoline, or b) where I can get a wiring diagram? I only had a few remaining plugs to unplug, and I cut the ground wires. Do I need to redo all of it and start over? Anyone want a free compuvalve? I just wanted to change the spark plugs in the damn thing! Good thing the truck was cheap!

 

OK, I could tell I wasn't getting fuel, so I hot-wired the pump direct, and it runs. Anyone know what output on the compuvalve tells the fuel pump to run?

 

Welcome to FTE! This is a big site, and this is a diesel sub-forum.
You should post here: Alternative Fuels, Hybrids & Mileage - Ford Truck Enthusiasts Forums

Lot's of help there.

 

Change the injectors go to you pull it get a brain take all all propane crap off truck and that's it