I replaced my stock lift pump with a fass 95 pump along with getting my A/C charged, and installed an edge juice with attitude monitor today. When I got in to take it for a test drive I noticed that my speedometer needle was pegged against the at rest nipple on the back side. If I shut the truck off and after a while the needle will rest back to about the 7 0'clock position, as soon as I open the door it pegs out again. The only trouble codes that come up are P0628, low voltage detected at fuel lift pump. Could this be from the chip or a loose connection? I tried to wiggle all of the new connections and no help. I own a 2003 4x4 six speed with 92k. Every thing has been stock to this point. Thanks for you help and input.