were is the feul pump cut off switch located?

There isn't one. The power to the fuel pump runs through: 1. Fusible Link B in the engine compartment fuse and relay box, 2. The fuel pump relay in the passenger comp. relay box, 3. The fuel pump to ground. If you want to find a specialist, here's a directory link for you: https://repairpal.com/hyundai-repair-in-kissimmee-florida