Where is the fuel pressure regulator on 2006 Volvo s60 2.5t?

The fuel pressure regulator on a 2006 Volvo S60 2.5T is integrated into the fuel pump module, which is located in the fuel tank. To access it, you'll typically need to remove the rear seat and the access panel or drop the fuel tank. The regulator is not externally mounted, so it's important to handle the fuel system carefully during any maintenance.