Standard Ignition PR510 Fuel Injection Pressure Regulator

Fuel Pressure Control for Returnless Gas Systems

The Standard Ignition PR510 is a new, adjustable fuel injection pressure regulator for returnless gas fuel systems. It includes an O-ring and caution sheet, and it is built for direct service on select Kia and Hyundai applications, including the Kia Forte, Kia Soul, Kia Optima, and Hyundai Sonata.

• Adjustable fuel injection pressure regulator
• Returnless fuel system design for gas applications
• New replacement part
• Includes O-ring
• Includes caution sheet
• Single inlet and single outlet configuration
• No reference port included

Detailed Product Overview

Standard Ignition PR510 is a fuel injection pressure regulator used to maintain proper fuel pressure in returnless gasoline systems. It is listed for 2010-2013 Kia Soul, 2011 Kia Optima, 2011-2012 Hyundai Sonata, and 2014 and 2016 Kia Forte applications. This part cross-references Dorman OE Solutions 800-622 for the same application.

As a returnless regulator, the PR510 is suited to systems that control fuel delivery without a traditional return line. Its adjustable design supports pressure calibration during service, while the included O-ring helps with sealing at installation. The single inlet and single outlet layout matches the listed OE-style configuration.

Common Problems This Part Addresses

• Fuel pressure that is too high or too low
• Hard starting related to unstable fuel delivery
• Rough idle caused by inconsistent rail pressure
• Fuel trim issues tied to regulator malfunction
• Driveability concerns on returnless fuel injection systems

Installation Notes and Tips

Verify the vehicle’s fuel system type before installation; this regulator is for gas returnless systems only. Confirm the application by year, make, and model before ordering, especially on Kia Forte, Kia Soul, Kia Optima, and Hyundai Sonata vehicles. Follow the caution sheet included with the part and inspect the sealing surface and O-ring condition during service.

Quality Assurance

Standard Ignition supplies this PR510 as a new replacement fuel injection pressure regulator for service use on the listed applications. The part is built to match the required returnless fuel system configuration for proper fitment and function.