I had the quadzilla box on my truck and it crapped out and threw the 1693 code. I contacted my dodge house and they said that it means that there may be other codes and asked if my VP had been changed, i bought the truck with 193,000 and it has 197,000 on it now and has run great till the box failed. The dodge house said a good way to check is if the lift pump was moved off of the engine and put in the tank. Where is the lift pump located so I can check if it has been replaced or relocated. Does anyone have a diagram that i can look at to check on it

 

Stock lift pump location:

Number 1