I noticed the other day that after my glow plugs cycle, and my wts light goes off, it actually doesn't go off after the truck starts. its just very very dim along with the water in fuel light. no problems starting or anything. I just did an engine swap, is it possible I put the controller power wire in the wrong spot?

 

Has nobody had issues with the wts staying on? Truck still starts fine, just don't want to burn up glow plugs or relay.

 

Sounds like a electrical issue, power bleeding over to your light circuits. I would check grounds and plugs. May have to find a scematic and see what else is on those warning light circuits.