Delphi FP10509 Fuel Injection Pressure Regulator

Delphi Fuel Injection Pressure Regulator Overview

The Delphi FP10509 fuel injection pressure regulator is designed for precise fuel pressure control in select Buick, Oldsmobile, and Pontiac models. Engineered with durable metal construction, this regulator ensures consistent fuel delivery for optimal engine performance.

• Metal construction for durability and corrosion resistance
• Push-in inlet and outlet ports with 0.51 inch (13.0 mm) diameter
• Single inlet and outlet port configuration
• Bolt mounting type for secure installation
• Non-adjustable design for reliable factory-set pressure regulation
• System pressure rating of 51 psi

Detailed Product Description

The Delphi FP10509 fuel injection pressure regulator is a critical component in the fuel injection system, maintaining consistent fuel pressure to the injectors. Constructed entirely of metal, it offers enhanced durability and resistance to wear and corrosion. The regulator features push-in type inlet and outlet ports, each with a diameter of 0.51 inches (13.0 mm), facilitating straightforward hose connections. Its bolt mounting type ensures a secure fitment within the engine bay. This non-adjustable regulator is calibrated to maintain a system pressure of 51 psi, matching the specifications required by various Buick, Oldsmobile, and Pontiac vehicles.

Compatible Vehicles and Applications

This fuel injection pressure regulator is compatible with multiple GM makes and models, including:

• Buick LeSabre, Riviera, Skylark, and Reatta
• Oldsmobile 98, Delta 88, and Cutlass Calais
• Pontiac Bonneville, Firebird, Grand Am, and Toronado

Using the Delphi FP10509 ensures proper fuel pressure regulation tailored to these specific vehicles, supporting efficient fuel delivery and engine operation.

Common Issues Addressed by the FP10509 Regulator

• Fuel pressure fluctuations causing poor engine performance
• Hard starting or stalling due to inconsistent fuel delivery
• Fuel leaks from worn or damaged pressure regulators
• Engine hesitation or misfires related to fuel pressure irregularities
• Check engine light triggered by fuel system faults

Installation Notes and Tips

• Ensure the engine is cool before beginning installation
• Verify compatibility with your vehicle’s make and model prior to purchase
• Use appropriate tools to remove the old regulator and install the new one securely using the bolt mounting points
• Inspect fuel lines and connections for wear or damage during installation
• After installation, check for fuel leaks and proper system pressure

Quality Assurance and Warranty

Delphi manufactures the FP10509 fuel injection pressure regulator to meet OEM standards, ensuring reliable performance and longevity. The metal construction supports durability under typical operating conditions. While specific warranty details may vary, Delphi products generally come with a limited warranty covering defects in materials and workmanship. Consult product documentation or your supplier for exact warranty terms.