Have a 01 2nd gen with a Fass titanium series I blew a fuse on the fass and once replaced it started working again I'm getting fuel all the way up to the injection pump but not to the injectors now I have code 1689 which is no communication between injection pump and ECM I changed the relays but still nothing. Everything worked fine till I blew the fuse on the fass what could the problem be. Is the VP44 dead?

 

How long did you run it with no pressure?