Delphi FP10414 Fuel Injection Pressure Regulator

Fuel Pressure Control for OE-Style Performance

The Delphi FP10414 fuel injection pressure regulator is built for precise fuel system control in select Ford and Mazda applications. With a metal body, push-in inlet, hose outlet, and 44 system pressure rating, it supports stable fuel delivery for drivability and fuel trim consistency.

Compatible with 1993-2002 Mazda 626, 1995-2002 Mazda Millenia, 1993-1997 Ford Probe, and 1993-1997 Mazda MX-6, this Delphi FP10414 regulator is a direct-fit service part for common fuel pressure repair needs.

Key Features

• Metal construction for fuel system durability
• Fixed-pressure design; not adjustable
• Push-in inlet with hose-style outlet
• One inlet port and one outlet port
• Bolt-on mounting type for secure installation
• No gauge port
• System pressure rating: 44
• Inlet port diameter: 11.0 mm (0.43 in)
• Outlet port diameter: 8.0 mm (0.31 in)

Detailed Description

Delphi brings OE heritage and decades of original-equipment experience to the FP10414 fuel injection pressure regulator. The design uses a metal housing and fixed 44-pressure specification to help maintain consistent fuel pressure across the fuel injection system. For Mazda 626, Mazda Millenia, Ford Probe, and Mazda MX-6 applications, the FP10414 supports accurate fuel delivery where pressure regulation is critical to engine operation.

This part cross-references Dorman - OE Solutions 800-212 and Standard Ignition PR100 for the same application. The Delphi FP10414 is a practical replacement choice when servicing fuel pressure regulation on 1993-2002 Mazda 626, 1995-2002 Mazda Millenia, 1993-1997 Ford Probe, and 1993-1997 Mazda MX-6 models.

Common Problems This Part Can Address

• Fuel pressure that is too high or too low
• Hard starting caused by unstable fuel delivery
• Rough idle related to pressure regulation issues
• Fuel trim concerns from inconsistent injector pressure
• Driveability problems tied to a worn regulator diaphragm or valve

Installation Notes and Tips

Verify inlet and outlet port sizes before installation: 11.0 mm push-in inlet and 8.0 mm hose outlet. Confirm the vehicle uses a bolt-mounted regulator and matches the fixed 44 system pressure specification. Inspect fuel lines, seals, and surrounding components for wear or contamination before reassembly, and follow the vehicle service manual for fuel system depressurization and leak checks.

Quality Assurance

Delphi builds aftermarket parts using OE experience and supplier knowledge developed through work with major automakers. That OE-based engineering approach is reflected in the FP10414 fuel injection pressure regulator for consistent fit and fuel system control.