[donidavis]

Hey guys im having problems with my eclipse. i put a new engine in and now its trowing codes. the ODB11 says that is a incorrect fuel combustion... fuel pressure regulator isnt getting vacuum to it or something. When i crank it it idles a lil below 1x then it picks up... then it starts to backfire really bad!!!. we got new plugs wires Coil... Somebody told me its not getting vacuum to the regulator.. So if anybody could help me out i would really appreciate it!! im young and trying to learn thats all!!

Thank guys