replaced fel pump now fuel gauge wont work stays on e ad light stays on on 2004 Hyundai Santa Fe

pt old pump back in truck runs fine but gas gauge not working now

Asked by for the 2004 Hyundai Santa Fe
You need to look at a wiring diagram, not sure how far back their information goes but Hyundai as a car manufacturer put a lot of free technical information and workshop manuals on line for Hyundai owners. Check out lots of great information.
There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate
1 more answer
why did you replace the fuel pump to begin with??