Fuel Pressure Test
WARNING: This page is about a different car, the 2003 Dodge Intrepid, 2003 Chrysler Intrepid, 2003 Chrysler Concorde, and 2003 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Fuel system is under constant pressure even when ignition is off. Open fuel system with caution.
To check fuel pressure, see CHECKING FUEL DELIVERY under FUEL SYSTEMS in BASIC DIAGNOSTIC PROCEDURES - CONCORDE, INTREPID & 300M article.