Delphi FP10577 Fuel Injection Pressure Regulator

Fuel Pressure Control for Toyota Applications

The Delphi FP10577 fuel injection pressure regulator is built for precise fuel system control in select Toyota applications. It is a metal, bolt-mounted regulator with push-in inlet and outlet connections, a 44 psi system pressure rating, and no gauge port or adjustability.

Compatible With 1987 Toyota Camry and 1992-1995 Toyota Paseo applications, including 1995 Toyota Paseo without California Emission System and 1992 Toyota Paseo built to 05/1992. Delphi FP10577 is a direct-fit fuel injection pressure regulator for restoring stable fuel delivery in these vehicles.

Key Features

• Metal construction for fuel system durability
• 44 psi system pressure specification
• Push-in inlet and outlet design
• Single inlet and single outlet configuration
• Bolt mounting style for secure installation
• No gauge port and non-adjustable design
• OE heritage engineering from Delphi

Detailed Description

Delphi FP10577 is a fuel injection pressure regulator engineered for Toyota fuel injection systems that require a 44 psi regulator with push-in ports. Delphi draws on OE supplier experience to build aftermarket parts with factory-style fit and function, and this regulator follows the original-style layout used on select Camry and Paseo applications. This part cross-references Dorman - OE Solutions 800-160 for the same application.

Use Delphi FP10577 when servicing a Toyota Camry or Toyota Paseo fuel system that needs consistent pressure regulation at the injector rail. The metal body, bolt mount, and fixed-pressure design support accurate fuel delivery without an external adjustment point.

Common Problems This Part Can Address

• Fuel pressure that is too high or too low
• Hard starting caused by unstable fuel pressure
• Rough idle from inconsistent injector supply
• Fuel odor or rich-running symptoms related to regulator failure
• Driveability issues on 1987 Camry and 1992-1995 Paseo fuel systems

Installation Notes and Tips

Verify the inlet and outlet port sizes, push-in connection style, and 44 psi system pressure before installation. Confirm vehicle application details, including the 1995 Toyota Paseo without California Emission System note and the 1992 Toyota Paseo to 05/1992 fitment, to ensure the correct regulator is selected. Inspect fuel lines and sealing surfaces during service to help prevent leaks after replacement.

Quality Assurance

Delphi builds this regulator using OE-based engineering knowledge developed through long-term supplier experience with major automakers. FP10577 is made to meet the fuel system requirements of the listed Toyota applications with the correct pressure and connection style.