Walker 255-1222 Fuel Injection Pressure Regulator

Fuel pressure control

Walker Products fuel injection pressure regulator 255-1222 is a standard replacement part for factory fuel systems that need accurate pressure control. It fits applications such as Hyundai Accent, Hyundai Kona, Hyundai Venue, Kia Rio, Hyundai Elantra, Hyundai Tucson, and Kia Sportage, with in-tank regulator notes where listed.

Key features

• Matches OE specifications for fit, pressure range, and fuel flow.
• Steel construction with corrosion-resistant components.
• Direct-fit design for straightforward replacement.
• Push-in mounting type for factory-style installation.
• Single inlet, single outlet, and two-port layout.
• Non-adjustable regulator with no gauge port.

Detailed description

This fuel injection pressure regulator helps maintain the correct fuel pressure in the fuel rail so the injectors receive the proper amount of fuel under changing operating conditions. Stable pressure supports smooth cold starts, consistent idle quality, strong throttle response, and cleaner emissions. Part number 255-1222 is built to OE-level specifications and uses corrosion-resistant steel components for durability in fuel system service. It is a direct-fit replacement for applications including Hyundai Accent, Hyundai Kona, Hyundai Venue, and Kia Rio, as well as other listed Hyundai and Kia models.

Common issues it can address

• Hard starting caused by unstable fuel pressure.
• Hesitation or poor throttle response during acceleration.
• Rough or unstable idle from incorrect fuel delivery.
• Poor fuel economy related to fuel pressure control problems.
• Emissions concerns tied to an incorrect air/fuel mixture.

Installation notes and tips

Verify the regulator style, mounting type, and in-tank application notes before installation. This part number 255-1222 uses push-in mounting and is not adjustable. Mounting hardware is not included. Confirm the fuel system configuration on the vehicle before ordering, especially on Hyundai Elantra applications noted as Korea built vehicles.

Quality assurance

Walker Products builds this regulator as a standard replacement part with OE-style fit and performance targets. The corrosion-resistant construction is intended for the demands of fuel system service and engine bay exposure.