Delphi FP10004 Fuel Injection Pressure Regulator

Fuel Pressure Control for OE Applications

Delphi FP10004 is a fuel injection pressure regulator built with a metal body and OE-based engineering knowledge. It is set for a 51 system pressure, uses a push-in inlet and threaded outlet, and mounts with a bolt-on design for direct replacement service on listed applications.

Compatible With 1993-1997 Chevrolet Camaro and Pontiac Firebird fuel injection systems, plus select Buick, Cadillac, and Chevrolet V8 applications from the mid-1990s. Delphi FP10004 supports accurate fuel pressure control where stable injector supply is critical.

Key Features

• Fuel injection pressure regulator for air and fuel delivery systems
• Metal construction for durable underhood service
• 51 system pressure specification
• 1 push-in inlet and 1 threaded outlet
• Bolt-on mounting type for service replacement
• No gauge port and non-adjustable design
• OE heritage backed by Delphi’s long supplier experience

Detailed Description

The Delphi FP10004 fuel injection pressure regulator is engineered for vehicles that require consistent fuel rail pressure to maintain proper injector performance. Its metal housing, push-in inlet, threaded outlet, and bolt-mount layout reflect the original equipment style used on many GM applications. This part number is commonly searched as Delphi FP10004 and FP10004 for replacement work on Chevrolet Camaro, Pontiac Firebird, and related mid-1990s platforms.

This part cross-references Standard Ignition PR202 for the same application.

Common Problems It Can Address

• Fuel pressure that is too high or too low
• Hard starting caused by unstable fuel delivery
• Rich or lean running conditions from regulator wear
• Fuel odor or pressure loss related to a failing regulator
• Driveability issues tied to inconsistent injector supply

Installation Notes and Tips

Verify inlet and outlet port style, mounting location, and system pressure before installation. Confirm vehicle application by year, make, and model, especially on 1994-1997 Chevrolet Camaro, 1994-1997 Pontiac Firebird, 1994-1996 Buick Roadmaster, 1993-1996 Cadillac Commercial Chassis, 1993-1996 Cadillac Fleetwood, 1994-1996 Chevrolet Caprice, 1994-1996 Chevrolet Impala, and 1995 Chevrolet Monte Carlo. Use clean fuel system practices and inspect related lines and seals during replacement.

Quality Assurance

Delphi builds aftermarket parts using OE experience and supplier knowledge developed through work with major automakers. That OE heritage is reflected in the FP10004 regulator’s construction and application-focused design.