My dad has an 04', the P0628 code showed up which is fuel lift pump circuit voltage low. Is there a circuit or relay somewhere for this lift pump? I think the stock lift pump is burnt up doesn't come on at all when you turn the key on or bump the starter. Also will it hurt the CP3 if you running low pressure to it?

 

If the lift pump is toast then the CP3 is now not only picking the fuel up from the tank it is pressuring the fuel rail. So yeah without A little help it is gonna burn up. And you don't want that bill... Take it in and get A lift pump done or get A FASS 150 put on it.. Good luck.

Rhino.