Solenoid-Fuel Pressure: Description
WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
The fuel pressure solenoid is attached to the rear of the left fuel rail. The solenoid controls and maintains the rail pressure constant along with a control current transmitted by the engine control module (ECM).