Delphi FP10003 Fuel Injection Pressure Regulator

Fuel Pressure Control for OE-Style Performance

The Delphi FP10003 fuel injection pressure regulator is built for precise fuel system control in a wide range of GM, Isuzu, Honda, and Pontiac applications. With OE heritage behind the design, it supports stable fuel pressure for drivability, starting, and consistent injector operation.

Compatible With 1990-1999 Pontiac Grand Am, Pontiac Sunfire, Chevrolet Cavalier, Chevrolet Malibu, Buick Skylark, and other listed applications, this regulator is a direct-fit service part for fuel injection systems that require a 44 psi setting.

Key Features

• Delphi FP10003 fuel injection pressure regulator
• Fixed 44 psi system pressure
• Metal construction for fuel system durability
• Push-in inlet with threaded outlet
• 1 inlet and 1 outlet port
• Bolt-mount design
• No gauge port and non-adjustable configuration
• OE-based engineering from a supplier with long-standing original equipment experience

Detailed Description

The Delphi FP10003 is a fuel injection pressure regulator designed to maintain the specified fuel pressure required by many multi-port fuel injection systems. Its 44 psi calibration, metal body, push-in inlet, and threaded outlet support proper fuel delivery across a broad range of vehicles, including Pontiac Grand Am, Chevrolet Cavalier, and Buick Skylark applications. Delphi’s OE background is reflected in the part’s fit, materials, and pressure control approach, making it a practical replacement for worn or unstable regulators.

This part cross-references Standard Ignition PR92 and Dorman - OE Solutions 800-204 for the same application.

What It Helps Fix

• Hard starting caused by incorrect fuel pressure
• Rich or lean running conditions from pressure irregularities
• Fuel odor or drivability issues related to regulator wear
• Rough idle or hesitation under acceleration
• Fuel delivery inconsistency in aging injection systems

Installation Notes and Tips

Verify inlet and outlet port style, mounting type, and system pressure before installation. This regulator uses a push-in inlet, threaded outlet, and bolt mounting, so the fuel line and mounting points must match the original configuration. Confirm vehicle application by year, make, and model before ordering, especially on 1990s GM, Isuzu, and Honda Passport applications.

Fits 1999 Pontiac Grand Am, N/A; Fits 1991-1998 Buick Skylark, N/A; Fits 1992-1998 Chevrolet Cavalier, N/A; Fits 1997-1998 Chevrolet Malibu, N/A; Fits 1992-1998 Oldsmobile Achieva, N/A; Fits 1991-1998 Pontiac Grand Am, N/A; Fits 1995-1998 Pontiac Sunfire, N/A; Fits 1993-1996 Buick Century, N/A; Fits 1992-1996 Chevrolet Corsica, N/A; Fits 1992-1996 Chevrolet Corvette, N/A; Fits 1993-1996 Oldsmobile Cutlass Ciera, N/A; Fits 1993-1995 Buick LeSabre, N/A; Fits 1990-1995 Cadillac DeVille, N/A; Fits 1993-1995 Chevrolet Lumina APV, N/A; Fits 1994-1995 Honda Passport, N/A; Fits 1993-1995 Isuzu Rodeo, N/A; Fits 1992-1995 Isuzu Trooper, N/A; Fits 1993-1995 Oldsmobile Silhouette, N/A; Fits 1993-1995 Pontiac Trans Sport, N/A; Fits 1993-1994 Oldsmobile 88, N/A; Fits 1993-1994 Pontiac Bonneville, N/A; Fits 1992-1994 Pontiac Sunbird, N/A; Fits 1993 Cadillac 60 Special, N/A; Fits 1990-1993 Cadillac Commercial Chassis, N/A; Fits 1990-1993 Cadillac Eldorado, N/A; Fits 1990-1993 Cadillac Seville, N/A; Fits 1993 Chevrolet Lumina, N/A; Fits 1990-1993 Geo Storm, N/A; Fits 1991-1993 Isuzu Stylus, N/A; Fits 1990-1992 Cadillac Fleetwood, N/A; Fits 1990-1992 Isuzu Impulse, N/A; Fits 1991 Oldsmobile Cutlass Calais, N/A; Fits 1991 Oldsmobile Cutlass Supreme, N/A; Fits 1991 Pontiac Grand Prix, N/A.

Quality Assurance

Delphi builds this regulator with OE experience and original-equipment knowledge carried into aftermarket service parts. That background supports consistent fuel pressure control and dependable replacement quality for the listed applications.