Delphi FP10023 Fuel Injection Pressure Regulator

Fuel Pressure Control for OE-Style Performance

The Delphi FP10023 fuel injection pressure regulator is built for returnless fuel systems that require stable 40 psi pressure control. With a metal body, push-in inlet, clamp mounting, and no gauge port, it is a direct-fit service part for select Cadillac and Oldsmobile applications.

Fits 1995 Cadillac DeVille, N/A; Fits 1995 Cadillac Eldorado, N/A; Fits 1995 Cadillac Seville, N/A; Fits 1995 Oldsmobile Aurora, N/A; Fits 1999-2002 Oldsmobile Intrigue, N/A; Fits 2001-2002 Oldsmobile Aurora, N/A.

Key Features

• Delphi FP10023 fuel injection pressure regulator
• Metal construction for fuel system durability
• Returnless outlet type for the specified OE-style setup
• Push-in inlet with one inlet port and one outlet port
• Clamp-mounted design for secure installation
• Set for 40 psi system pressure
• No adjustable setting and no gauge port

Detailed Description

Delphi draws on OE engineering experience to produce aftermarket fuel system components that follow original equipment requirements closely. The FP10023 is a fuel injection pressure regulator for returnless systems, using a metal housing, push-in inlet, and clamp mounting to match the listed applications. This part number is used on select Cadillac DeVille, Cadillac Eldorado, Cadillac Seville, Oldsmobile Aurora, and Oldsmobile Intrigue models, making it a focused replacement for vehicles that need consistent fuel pressure control.

This part cross-references Standard Ignition PR123 and PR223 for the same application.

Common Issues This Part Can Address

• Fuel pressure that is too high or too low for the system specification
• Hard starting caused by unstable fuel delivery
• Rough idle related to pressure regulation problems
• Fuel trim concerns tied to inconsistent injector supply pressure
• Driveability issues on returnless fuel injection systems

Installation Notes and Tips

Verify the vehicle uses the listed returnless fuel system and confirm the inlet diameter and mounting style before installation. The FP10023 is not adjustable, so correct application matching is important for proper fuel pressure control. Use clean fuel system practices during service to help prevent contamination at the regulator and connected lines.

Quality Assurance

Delphi builds this regulator with OE heritage and supplier experience developed through work with major automakers. That background supports consistent fitment and specification alignment for the listed Cadillac and Oldsmobile applications.